УСТРОЙСТВО УПРАВЛЕНИЯ ГИБРИДНОГО ТРАНСПОРТНОГО СРЕДСТВА

Изобретение относится к устройству управления для гибридного транспортного средства. Устройство управления гибридного транспортного средства, при котором транспортное средство содержит двигатель внутреннего сгорания, электродвигатель, электрогенератор и аккумуляторную батарею, а устройство управления содержит блок вывода требуемой движущей силы и блок вывода требуемой электроэнергии. Также устройство содержит блок задания возможной наивысшей выходной величины, блок задания заданной величины, первый и второй блоки вывода уровня пригодности, блок вывода меры требования на начало работы и блок суждения о начале работы двигателя внутреннего сгорания. Блок суждения о начале работы двигателя внутреннего сгорания в случае, когда упомянутая требуемая электроэнергия превосходит возможную наивысшую выходную величину или когда интегральная величина превосходит предварительно заданную величину, запускает упомянутый двигатель внутреннего сгорания, так что упомянутое транспортное средство перемещается ...

Anfahrunterstützung mit Kupplungsschleifpunktadaption

Ein Verfahren zur Anfahrunterstützung bei einem Kraftfahrzeug mit einem Antriebsmotor umfasst: Erfassen (S1) eines möglichen Anfahrvorgangs; Erfassen (S2) eines Werts (rClth) für die Kupplungsposition; Vergleichen (S3) des erfassten Werts (rClth) mit einem vorbestimmten ersten Wertebereich für die Kupplungsposition; und Durchführen (S5) einer Anfahrunterstützung, falls der erfasste Wert (rClth) innerhalb des ersten Wertebereiches liegt.

CONTROLLER FOR HYBRID VEHICLE

Disclosed is a control device, which improves fuel efficiency and drivability, for a hybrid vehicle which can run in either of the following: an EV mode in which a motor (101) is driven using only electrical power from a capacitor (113); or a series mode in which the motor (101) is driven using electrical power generated by a generator (107) from mechanical power from an internal combustion engine. The disclosed control device is provided with: a required drive power derivation unit which uses the speed of the vehicle and the position of the accelerator pedal to derive the drive power required from the motor (101); a required electrical power derivation unit which uses the required drive power and the speed of the motor (101) to derive the electrical power required from the motor (101); a maximum-output setting unit which sets the maximum output of the capacitor (113) on the basis of the state of said capacitor (113); and an internal combustion engine start determination unit which determines ...

Method and Apparatus for Scheduling Vehicle Startup

A computer implemented method includes logging vehicle startup information. The method also includes determining, via a computer, if timing commonalities exist between logged vehicle startup information instances. Further, the method includes recommending automatic vehicle startup, based on a threshold number of timing commonalities. The method also includes formulating recommended start times based on logged vehicle startup information instances having timing commonalities. The method additionally includes presenting a schedule including recommended start times to a vehicle user and scheduling automatic vehicle startups upon vehicle user acceptance of the presented schedule.

STARTING SUPPORT HAVING CLUTCH BITE POINT ADAPTION

УСТРОЙСТВО УПРАВЛЕНИЯ ГИБРИДНОГО ТРАНСПОРТНОГО СРЕДСТВА

... 1. Устройство управления гибридного транспортного средства, содержащего:двигатель внутреннего сгорания,электродвигатель,электрогенератор, который генерирует электроэнергию движущей силой упомянутого двигателя внутреннего сгорания, иаккумуляторную батарею, которая запасает электроэнергию, сгенерированную упомянутым электродвигателем или упомянутым электрогенератором, и подает электроэнергию на упомянутый электродвигатель,при этом упомянутое гибридное транспортное средство имеет возможность перемещаться:в режиме движения EV, в котором упомянутый электродвигатель приводится в движение электроэнергией только упомянутой аккумуляторной батареи, ив последовательном режиме движения, в котором упомянутый электродвигатель приводится в движение электроэнергией, сгенерированной упомянутым электрогенератором, который использует движущую силу упомянутого двигателя внутреннего сгорания,а устройство управления содержит:блок вывода требуемой движущей силы, который выводит требуемую движущую силу, необходимую ...

CONTROLLER FOR HYBRID VEHICLE

There is provided a controller for a hybrid vehicle which can improve fuel consumption performance and driveability. A controller for a hybrid vehicle which can run in an EV drive mode in which an electric motor 101 is driven by electric power of a battery 113 only and a series drive mode in which the electric motor 101 is driven by electric power generated by a generator 107 using power of an engine 109 includes a demanded driving force calculation unit for calculating a demanded driving force for the electric motor 101 based on vehicle speed and accelerator pedal opening, a demanded electric power calculation unit for calculating a demanded electric power demanded of the electric motor 101 based on the demanded driving force and a revolution speed of the electric motor 101, an available uppermost outputting value setting unit for setting an available uppermost outputting value for the battery 113 based on the conditions of the battery 103, and an engine starting determination unit for ...

Hybrid Vehicle Engine Starter Control Systems and Methods

A vehicle propulsion system includes an engine and a first electric machine each configured to selectively provide torque to propel the vehicle. The propulsion system also includes a second electric machine coupled to the engine and configured to start the engine from an inactive state. A controller is programmed to execute a first control algorithm while output speed of the second electric machine is less than a first speed threshold. The controller is also programmed to execute a second control algorithm while output speed of the second electric machine is greater than the first speed threshold and less than a second speed threshold. 1. A vehicle propulsion system comprising:an engine and a first electric machine each configured to selectively provide torque to propel the vehicle;a second electric machine coupled to the engine and configured to start the engine from an inactive state; and execute a first control algorithm while output speed of the second electric machine is less than a first speed threshold, and', 'execute a second control algorithm while output speed of the second electric machine is greater than the first speed threshold and less than a second speed threshold., 'a controller programmed to'}2. The vehicle propulsion system of wherein the controller is further programmed to execute a third control algorithm while output speed of the second electric machine is greater than the second speed threshold claim 1 , and wherein the first control algorithm includes operating the second electric machine using trapezoidal current control with pulse width modulation claim 1 , the second control algorithm includes operating the second electric machine using six-step voltage control with a variable phase advance angle claim 1 , and the third control algorithm includes operating the second electric machine using six-step voltage control with a predetermined fixed phase advance angle.3. The vehicle propulsion system of wherein the first speed threshold is based ...

Controller for hybrid vehicle

There is provided a controller for a hybrid vehicle which can improve fuel consumption performance and driveability. A controller for a hybrid vehicle which can run in an EV drive mode in which an electric motor 101 is driven by electric power of a battery 113 only and a series drive mode in which the electric motor 101 is driven by electric power generated by a generator 107 using power of an engine 109 includes a demanded driving force calculation unit, a demanded electric power calculation unit, an available uppermost outputting value setting unit, and an engine starting determination unit. The engine starting determination unit starts the engine 109 so that the vehicle runs in the series drive mode when the demanded electric power demanded of the electric motor 101 exceeds the available uppermost outputting value.

The control device of the hybrid vehicle

VERFAHREN UND VORRICHTUNG ZUM ZEITLICHEN PLANEN DES FAHRZEUGSTARTS

Ein erfindungsgemäßes System weist einen Prozessor auf, der dafür ausgelegt ist, Fahrzeugstartzeiten zu protokollieren. Der Prozessor ist auch dafür ausgelegt zu bestimmen, ob Zeitabweichungen oberhalb eines Zeitschwellenwerts zwischen protokollierten Fahrzeugstartzeiten und geplanten Startzeiten vorhanden sind.

STARTING SUPPORT HAVING CLUTCH BITE POINT ADAPTION

The invention relates to a method for start-up support in a motor vehicle having a drive motor, comprising: detecting (S1) a possible start-up process; detecting (S2) a value (rCIth) for the clutch position; comparing (S3) the detected value (rCIth) to a predetermined first value range for the clutch position; and carrying out (S5) a start-up support if the detected value (rCIth) lies within the first value range.

Verfahren zum Einspuren eines Andrehritzels einer Startvorrichtung in einem Zahnkranz einer Brennkraftmaschine

Verfahren zum Einspuren eines Andrehritzels (19) einer Startvorrichtung (16) in einen Zahnkranz (13) einer Brennkraftmaschine (10), wobei die Brennkraftmaschine (10) eine Antriebswelle (22) und die Startvorrichtung (16) einem Startermotor (25) hat, wobei die Antriebswelle (22) eine variable Drehzahl (n) aufweist, und in einem Verfahrensschritt (S1) ein Abschalten der Brennkraftmaschine (10) erfolgt und danach in einem Verfahrensschritt (S2) das durch den Startermotor (25) nicht drehangetriebene Andrehritzel (19) durch einen Vorspuraktuator (28) mittels einer Vorspurkraft (FV) in Richtung zum Zahnkranz (13) vorgeschoben wird, bis es diesen berührt und danach in einem weiteren Verfahrensschritt (S3) auf das Andrehritzel (19) gezielt eine Einspurkraft (FE) bewirkt wird, um das Andrehritzel (19) in eine Zahnlücke (34) des Zahnkranzes (13) einzuspuren.

SYSTEM UND VERFAHREN FÜR AUTOMATISIERTE FAHRZEUGLEISTUNGSANALYSE

Die vorliegende Offenbarung stellt ein System und Verfahren für automatisierte Fahrzeugleistungsanalyse bereit. Ein Fahrzeug beinhaltet eine Steuerung, die dazu programmiert ist, bei Erfüllung von Übergangsbedingungen eine Kraftstoffeinsparfunktion zu aktivieren und den Übergang entsprechend der Erfüllung von Unterdrückungsbedingungen zu unterdrücken. Die Steuerung ist ferner dazu programmiert, Daten, die die Unterdrückungsbedingungen und eine mit der Erfüllung der Unterdrückungsbedingungen verbundene Zeit angeben, über einen Fahrzyklus zu sammeln.

CONTROL DEVICE FOR A HYBRID VEHICLE

METHOD FOR MESHING A STARTER PINION OF A STARTING DEVICE INTO A RING GEAR OF AN INTERNAL COMBUSTION ENGINE

FFV의 엔진 시동 제어 방법

... 본 발명은, FFV(Flexible Feul Vehicle)의 엔진을 크랭킹하는 시동 보조 수단 및 인젝터에 구비된 인젝터 히터를 이용하여 연료를 가열하는 수단을 구비한 차량의 시동 시에 크랭킹 조건 및 연료 가열 조건을 만족한 것으로 판단한 경우에, 크랭킹 중에 인젝터 히터를 가열하여 가열된 연료를 엔진으로 공급하도록 하는 엔진의 시동 제어 방법에 관한 것이다. 본 발명에서는 인젝터 히터의 가열 시간이 미리 정해진 설정값을 초과한 경우, 엔진의 냉간 시동시에 주분사 이전에 보조적으로 전분사를 실행함으로써, 에탄올 연료를 사용한 엔진의 겨울철 냉시동시 적은 연료로도 안정적으로 시동을 걸 수 있도록 한다.

STEUERSYSTEME UND -VERFAHREN FÜR HYBRIDFAHRZEUG-MOTORANLASSER

Ein Fahrzeugantriebssystem enthält einen Motor und einen ersten Elektromotor, jeder selektiv zum Bereitstellen von Drehmoment für den Vortrieb des Fahrzeugs. Das Antriebssystem enthält auch einen zweiten Elektromotor gekoppelt mit dem Motor und konfiguriert zum Starten des Motors aus einem inaktiven Zustand. Eine Steuerung ist so programmiert, dass ein erster Steuerungsalgorithmus durchgeführt wird, während die Abtriebsdrehzahl des zweiten Elektromotors niedriger als eine erste Geschwindigkeitsschwelle. Die Steuerung ist ferner so programmiert, dass ein zweiter Steuerungsalgorithmus durchgeführt wird, während die Abtriebsdrehzahl des zweiten Elektromotors höher ist als eine zweite Geschwindigkeitsschwelle.

Trail driving engine start-stop judgment systems and methods

Systems and methods for determining whether to use engine start-stop systems during trail or other off-road driving are provided. Systems and methods may utilize various vehicle sensors (e.g., lidar, forward-facing cameras, accelerometers, sonar sensors, etc.) to detect when it is appropriate to command engine stop for fuel economy while driving off-road. To determine appropriateness, the vehicle may evaluate obstacles, ground clearance, and/or vehicle inclination. A method may include measuring accelerations/inclinations of a vehicle, comparing an acceleration value of each acceleration to an acceleration threshold, and disabling a start-stop system of the vehicle based on at least one acceleration value exceeding the acceleration threshold. A system may include an accelerometer configured to measure accelerations of a vehicle, and a logic device configured to compare an acceleration value of each acceleration to an acceleration threshold, and disable a start-stop system based on at least ...

Control device for a hybrid vehicle

ENGINE START CONTROL METHOD

Disclosed is an engine starting control method for a flexible fuel vehicle (FFV) of supplying the heated fuel to the engine by heating an injector heater during cranking when it is determined that cranking condition and fuel heating condition are satisfied at the time of starting the vehicle having a starting auxiliary device for cranking the engine of FFV and a device for heating the fuel using the injector heater provided in an injector, wherein a pre-injection is auxiliary performed prior to a main injection during cold starting of the engine when the heating time of the injector heater exceeds a predetermined value, allowing stable starting with low fuel consumption at a time of cold starting an engine using ethanol fuel in winter. 1. An engine starting control method for a vehicle of supplying a heated fuel to an engine by heating an injector heater during cranking when it is determined that cranking condition and fuel heating condition are satisfied at a time of starting the vehicle having a device for heating the fuel using the injector heater;wherein a pre-injection is auxiliary performed prior to a main injection during starting of the engine when a heating time of the injector heater exceeds a predetermined value.2. The method of claim 1 , wherein a plurality of crank angles of each cylinder are measured and the pre-injection is performed with respect to a cylinder close to top dead center (TDC) exceeding a predetermined value based on the measured angle.3. The method of claim 2 , wherein the pre-injection is performed to all cylinders when the measured angle is less than or equal to a predetermined value.4. The method of claim 2 , wherein claim 2 , after performing the pre-injection claim 2 , the main injection is performed after the pre-injection is performed with the fuel heated by the injector heater before the main injection.5. The method of claim 1 , wherein the fuel supply is configured to be stopped for a predetermined period after the pre- ...

CONTROLLER FOR HYBRID VEHICLE

There is provided a controller for a hybrid vehicle which can improve fuel consumption performance and driveability. A controller for a hybrid vehicle which can run in an EV drive mode in which an electric motor 101 is driven by electric power of a battery 113 only and a series drive mode in which the electric motor 101 is driven by electric power generated by a generator 107 using power of an engine 109 includes a demanded driving force calculation unit, a demanded electric power calculation unit, an available uppermost outputting value setting unit and an engine starting determination unit. The engine starting determination unit starts the engine 109 so that the vehicle runs in the series drive mode when the demanded electric power demanded of the electric motor 101 exceeds the available uppermost outputting value.

Engine start control method

Disclosed is an engine starting control method for a flexible fuel vehicle (FFV) of supplying the heated fuel to the engine by heating an injector heater during cranking when it is determined that cranking condition and fuel heating condition are satisfied at the time of starting the vehicle having a starting auxiliary device for cranking the engine of FFV and a device for heating the fuel using the injector heater provided in an injector, wherein a pre-injection is auxiliary performed prior to a main injection during cold starting of the engine when the heating time of the injector heater exceeds a predetermined value, allowing stable starting with low fuel consumption at a time of cold starting an engine using ethanol fuel in winter.

Method and apparatus for scheduling vehicle startup

A computer implemented method includes logging vehicle startup information. The method also includes determining, via a computer, if timing commonalities exist between logged vehicle startup information instances. Further, the method includes recommending automatic vehicle startup, based on a threshold number of timing commonalities. The method also includes formulating recommended start times based on logged vehicle startup information instances having timing commonalities. The method additionally includes presenting a schedule including recommended start times to a vehicle user and scheduling automatic vehicle startups upon vehicle user acceptance of the presented schedule.

CONTROL DEVICE FOR A HYBRID VEHICLE

There is provided a controller for a hybrid vehicle which can improve fuel consumption performance and driveability. A controller for a hybrid vehicle which can run in an EV drive mode in which an electric motor 101 is driven by electric power of a battery 113 only and a series drive mode in which the electric motor 101 is driven by electric power generated by a generator 107 using power of an engine 109 includes a demanded driving force calculation unit for calculating a demanded driving force for the electric motor 101 based on vehicle speed and accelerator pedal opening, a demanded electric power calculation unit for calculating a demanded electric power demanded of the electric motor 101 based on the demanded driving force and a revolution speed of the electric motor 101, an available uppermost outputting value setting unit for setting an available uppermost outputting value for the battery 113 based on the conditions of the battery 103, and an engine starting determination unit for ...

Hybrid vehicle engine starter control systems and methods

A vehicle propulsion system includes an engine and a first electric machine each configured to selectively provide torque to propel the vehicle. The propulsion system also includes a second electric machine coupled to the engine and configured to start the engine from an inactive state. A controller is programmed to execute a first control algorithm while output speed of the second electric machine is less than a first speed threshold. The controller is also programmed to execute a second control algorithm while output speed of the second electric machine is greater than the first speed threshold and less than a second speed threshold.

START-UP SUPPORT INCLUDING CLUTCH BITE POINT ADAPTION

A method for start-up support in a motor vehicle having a drive motor includes: detecting a possible start-up process; detecting a value for the clutch position; comparing the detected value with a predetermined first value range for the clutch position; and carrying out a start-up support if the detected value lies within the first value range.

Control system and method for engine starter of hybrid vehicle

METHOD FOR MESHING A STARTER PINION OF A STARTING DEVICE INTO A RING GEAR OF AN INTERNAL COMBUSTION ENGINE

The invention relates to a method for meshing a starter pinion (19) of a starting device (16) into a ring gear (13) of an internal combustion engine (10). The internal combustion engine (10) has a driveshaft (22), and the starting device (16) has a starter motor (25), said driveshaft (22) having a variable rotational speed (n). The internal combustion engine (10) is switched off in a method step (S1), and the starter pinion (19), which is not being rotationally driven by the starter motor (25), is then advanced in the direction of the ring gear (13) by a toe-in actuator (28) by means of a toe-in force (FV) in a method step (S2) until the starter pinion contacts the ring gear. A meshing force (FE) is then exerted onto the starter pinion (19) in a controlled manner in an additional method step (S3) in order to mesh the starter pinion (19) into a tooth gap (34) of the ring gear (13).

METHOD FOR MESHING A STARTER PINION OF A STARTING DEVICE INTO A RING GEAR OF AN INTERNAL COMBUSTION ENGINE

The invention relates to a method for meshing a starter pinion () of a starting device () into a ring gear () of an internal combustion engine (). The internal combustion engine () has a driveshaft (), and the starting device () has a starter motor (), said driveshaft () having a variable rotational speed (n). The internal combustion engine () is switched off in a method step (S1), and the starter pinion (), which is not being rotationally driven by the starter motor (), is then advanced in the direction of the ring gear () by a toe-in actuator () by means of a toe-in force (FV) in a method step (S2) until the starter pinion contacts the ring gear. A meshing force (FE) is then exerted onto the starter pinion () in a controlled manner in an additional method step (S3) in order to mesh the starter pinion () into a tooth gap () of the ring gear (). 11916131010221625221019252813191319193413. A method for meshing a starter pinion () of a starting device () into a ring gear () of an internal combustion engine () , wherein the internal combustion engine () has a driveshaft () and the starting device () has a starter motor () , wherein the driveshaft () has a variable rotation speed (n) , and in a method step (S1) the internal combustion engine () is switched off and then in a method step (S2) the starter pinion () , which is not driven in rotation by the starter motor () , is advanced by means of a pre-meshing force (FV) using a pre-meshing actuator () , in a direction of the ring gear () until said starter pinion () touches said ring gear () and then in a further method step (S3) a meshing force (FE) is selectively applied to the starter pinion () in order to mesh the starter pinion () in a tooth gap () of the ring gear ().219221010. The method as claimed in claim 1 , characterized in that meshing of the starter pinion () takes place at a time (tD1) at which the driveshaft () of the internal combustion engine () is at a rotational speed (n) which is zero claim 1 , after ...

Verfahren und Anordnung zur Unterstützung eines Startvorgangs eines Verbrennungsmotors

Die Erfindung betrifft ein Verfahren zur Unterstützung eines Startvorgangs eines Verbrennungsmotors (60) durch eine elektrische Synchronmaschine (50), die in einem ersten Betriebszustand als elektrischer Generator und in einem zweiten Betriebszustand als elektrischer Motor betreibbar ist, umfassend: Erkennen (100) einer beginnenden Rotorbewegung des Rotors (55) der Synchronmaschine (50) mit einer ersten Winkelgeschwindigkeit, die einer ersten Frequenz entspricht, Ansteuern (110) der elektrischen Synchronmaschine (50) durch Anlegen einer Wechselspannung mit einer zweiten Frequenz, die größer ist als die erste Frequenz, Erkennen (200) eines Übergangs zwischen dem ersten und dem zweiten Betriebszustand der elektrischen Synchronmaschine (50), und Anpassen (120) der Ansteuerung der elektrischen Synchronmaschine (50) auf Grundlage des erkannten Übergangs.

CONTROLLER FOR HYBRID VEHICLE

There is provided a controller for a hybrid vehicle which can improve fuel consumption performance and driveability. A controller for a hybrid vehicle which can run in an EV drive mode in which an electric motor 101 is driven by electric power of a battery 113 only and a series drive mode in which the electric motor 101 is driven by electric power generated by a generator 107 using power of an engine 109 includes a demanded driving force calculation unit, a demanded electric power calculation unit, an available uppermost outputting value setting unit, and an engine starting determination unit. The engine starting determination unit starts the engine 109 so that the vehicle runs in the series drive mode when the demanded electric power demanded of the electric motor 101 exceeds the available uppermost outputting value.

Hybrid Vehicle Engine Starter Control Systems and Methods

Auto-stop start system for a vehicle

An auto-stop start system for a vehicle. The auto-stop start system has a control unit with an auto-stop start function controlling stop and start of an engine of the vehicle, and a control device by which control device the auto-stop start function can be temporarily deactivated by an operator of the vehicle. The control unit is configured to reactivate the auto-stop start function after a predetermined duration of a temporary deactivation. The predetermined duration of the temporary deactivation of the auto-stop start function is selectable by means of the control device.

SYSTEM AND METHOD FOR AUTOMATED VEHICLE PERFORMANCE ANALYTICS

A vehicle includes a controller programmed to activate a fuel savings feature upon satisfaction of transition conditions and inhibit the transition according to satisfaction of inhibit conditions. The controller is further programmed to accumulate data indicative of the inhibit conditions and a time associated with the conditions being satisfied over a drive cycle.

AUTO-STOP START SYSTEM FOR A VEHICLE

An auto-stop start system for a vehicle. The auto-stop start system has a control unit with an auto-stop start function controlling stop and start of an engine of the vehicle, and a control device by which control device the auto-stop start function can be temporarily deactivated by an operator of the vehicle. The control unit is configured to reactivate the auto-stop start function after a predetermined duration of a temporary deactivation. The predetermined duration of the temporary deactivation of the auto-stop start function is selectable by means of the control device.

Starting support having clutch bite point adaption

The invention relates to a method for start-up support in a motor vehicle having a drive motor, comprising: detecting (S1) a possible start-up process; detecting (S2) a value (rClth) for the clutch position; comparing (S3) the detected value (rClth) to a predetermined first value range for the clutch position; and carrying out (S5) a start-up support if the detected value (rClth) lies within the first value range.

System and method for keyless operation of vehicle ignition

A switch is interposed between an ignition antenna associated with a vehicle ignition switch and an auxiliary antenna located spaced from the ignition switch. A reader is selectively connected through the switch to either the ignition antenna or to the auxiliary antenna, the reader configured to determine if an authorized key is present adjacent to an antenna. An authorized key is kept adjacent to the auxiliary antenna. The vehicle ignition switch can be operated either with an authorized key brought adjacent to the ignition switch and adjacent to the ignition antenna or by adjusting the switch to connect the reader to the auxiliary antenna to read the authorized key kept adjacent thereto. A controller can cause this switch to adjust from connecting the reader to the ignition antenna to connecting the reader to the auxiliary antenna, so that the controller can automatically cause vehicle ignition operation when desired.

Method and apparatus for scheduling vehicle startup

Controller for hybrid vehicle

There is provided a controller for a hybrid vehicle which can improve fuel consumption performance and driveability. A controller for a hybrid vehicle which can run in an EV drive mode in which an electric motor 101 is driven by electric power of a battery 113 only and a series drive mode in which the electric motor 101 is driven by electric power generated by a generator 107 using power of an engine 109 includes a demanded driving force calculation unit, a demanded electric power calculation unit, an available uppermost outputting value setting unit, and an engine starting determination unit. The engine starting determination unit starts the engine 109 so that the vehicle runs in the series drive mode when the demanded electric power demanded of the electric motor 101 exceeds the available uppermost outputting value.

HYBRID VEHICLE ENGINE STARTER CONTROL SYSTEMS AND METHODS

A system includes an electric machine coupled to an engine and configured to start the engine from an inactive state. A controller executes a first control algorithm while output speed of the electric machine is less than a first speed threshold, and also executes a second control algorithm while the output speed is greater than the first speed threshold and less than a second speed threshold. Additionally, the controller is programmed to execute a third control algorithm while the output speed is greater than the second speed threshold. The first control algorithm includes operating the electric machine using trapezoidal current control with pulse width modulation. The second control algorithm includes operating the electric machine using six-step voltage control with a variable phase advance angle. The third control algorithm includes operating the electric machine using six-step voltage control with a predetermined fixed phase advance angle. 1. A system comprising:an engine;an electric machine coupled to the engine and configured to start the engine from an inactive state; and a first control algorithm while an output speed of the electric machine is less than a first speed threshold, including operating the electric machine using a trapezoidal current control algorithm with pulse width modulation;', 'a second control algorithm while the output speed of the electric machine is greater than the first speed threshold and less than a second speed threshold, including operating the electric machine using a six-step voltage control algorithm with a variable phase advance angle; and', 'a third control algorithm while the output speed of the electric machine is greater than the second speed threshold, including operating the electric machine using a six-step voltage control algorithm with a predetermined fixed phase advance angle., 'a controller in communication with the electric machine and programmed to execute2. The system of claim 1 , wherein the electric machine is ...

System and method for automated vehicle performance analytics

A vehicle includes a controller programmed to activate a fuel savings feature upon satisfaction of transition conditions and inhibit the transition according to satisfaction of inhibit conditions. The controller is further programmed to accumulate data indicative of the inhibit conditions and a time associated with the conditions being satisfied over a drive cycle.

Control method and apparatus applied to controller

A control method and a control apparatus are provided. A main control circuit board in a controller receives an initial control command via a CAN bus from an ECU after being powered on, controls a fault detection circuit board to detect initial states of the controller and all devices connected to the controller based on the initial control command to obtain initial state information, transmits the initial state information to the ECU via the CAN bus, receives a first target control command via the CAN bus from the ECU, and controls a conduction control circuit board to turn on at least one MOS in a MOS array based on the first target control command to output a control signal to a heater connected to the controller to control the heater to operate, thereby realizing a closed-loop control on the heater and adjusting a power of the heater at any time.

Method and apparatus for scheduling vehicle launch

ハイブリッド車両の制御装置

TRAIL DRIVING ENGINE START-STOP JUDGMENT SYSTEMS AND METHODS

Systems and methods for determining whether to use engine start-stop systems during trail or other off-road driving are provided. Systems and methods may utilize various vehicle sensors (e.g., lidar, forward-facing cameras, accelerometers, sonar sensors, etc.) to detect when it is appropriate to command engine stop for fuel economy while driving off-road. To determine appropriateness, the vehicle may evaluate obstacles, ground clearance, and/or vehicle inclination. A method may include measuring accelerations/inclinations of a vehicle, comparing an acceleration value of each acceleration to an acceleration threshold, and disabling a start-stop system of the vehicle based on at least one acceleration value exceeding the acceleration threshold. A system may include an accelerometer configured to measure accelerations of a vehicle, and a logic device configured to compare an acceleration value of each acceleration to an acceleration threshold, and disable a start-stop system based on at least ...

ENGINE STARTING CONTROL METHOD

Hybrid vehicle engine starter control systems and methods

A system includes an electric machine coupled to an engine and configured to start the engine from an inactive state. A controller executes a first control algorithm while output speed of the electric machine is less than a first speed threshold, and also executes a second control algorithm while the output speed is greater than the first speed threshold and less than a second speed threshold. Additionally, the controller is programmed to execute a third control algorithm while the output speed is greater than the second speed threshold. The first control algorithm includes operating the electric machine using trapezoidal current control with pulse width modulation. The second control algorithm includes operating the electric machine using six-step voltage control with a variable phase advance angle. The third control algorithm includes operating the electric machine using six-step voltage control with a predetermined fixed phase advance angle.

METHOD FOR MESHING A STARTER PINION OF A STARTING DEVICE INTO A RING GEAR OF AN INTERNAL COMBUSTION ENGINE

The invention relates to a method for meshing a starter pinion (19) of a starting device (16) into a ring gear (13) of an internal combustion engine (10). The internal combustion engine (10) has a driveshaft (22), and the starting device (16) has a starter motor (25), said driveshaft (22) having a variable rotational speed (n). The internal combustion engine (10) is switched off in a method step (S1), and the starter pinion (19), which is not being rotationally driven by the starter motor (25), is then advanced in the direction of the ring gear (13) by a toe-in actuator (28) by means of a toe-in force (FV) in a method step (S2) until the starter pinion contacts the ring gear. A meshing force (FE) is then exerted onto the starter pinion (19) in a controlled manner in an additional method step (S3) in order to mesh the starter pinion (19) into a tooth gap (34) of the ring gear (13).

Method for meshing a starter pinion of a starting device into a ring gear of an internal combustion engine

The invention relates to a method for meshing a starter pinion (19) of a starting device (16) into a ring gear (13) of an internal combustion engine (10). The internal combustion engine (10) has a driveshaft (22), and the starting device (16) has a starter motor (25), said driveshaft (22) having a variable rotational speed (n). The internal combustion engine (10) is switched off in a method step (S1), and the starter pinion (19), which is not being rotationally driven by the starter motor (25), is then advanced in the direction of the ring gear (13) by a toe-in actuator (28) by means of a toe-in force (FV) in a method step (S2) until the starter pinion contacts the ring gear. A meshing force (FE) is then exerted onto the starter pinion (19) in a controlled manner in an additional method step (S3) in order to mesh the starter pinion (19) into a tooth gap (34) of the ring gear (13).

ENGINE STARTING CONTROL METHOD

Control device for a hybrid vehicle

Disclosed is a control device, which improves fuel efficiency and drivability, for a hybrid vehicle which can run in either of the following: an EV mode in which a motor (101) is driven using only electrical power from a capacitor (113); or a series mode in which the motor (101) is driven using electrical power generated by a generator (107) from mechanical power from an internal combustion engine. The disclosed control device is provided with: a required drive power derivation unit which uses the speed of the vehicle and the position of the accelerator pedal to derive the drive power required from the motor (101); a required electrical power derivation unit which uses the required drive power and the speed of the motor (101) to derive the electrical power required from the motor (101); a maximum-output setting unit which sets the maximum output of the capacitor (113) on the basis of the state of said capacitor (113); and an internal combustion engine start determination unit which determines ...

Idle stop vehicle and control method thereof

An idle stop vehicle performs an idle stop to automatically stop an engine during a stop of the vehicle. The vehicle includes an idle stop condition determination unit for determining whether or not an idle stop condition holds, and an engine control unit for performing the idle stop when the idle stop condition holds before a stoppage time exceeds a specified time and prohibiting the idle stop after the stoppage time exceeds the specified time without the idle stop condition holding.

System for restarting internal combustion engine when engine restart request occurs

In a system, a starter includes a motor for rotatably driving an output shaft with a pinion and an actuator that shifts the pinion toward a ring gear to be engaged with the ring gear. A monitor unit monitors a rotational speed of the internal combustion engine. The rotational speed of the internal combustion engine drops after an automatic control for stop of the engine. When an engine restart request occurs with the rotational speed being within a preset range during the rotational speed of the internal combustion engine dropping by the automatic control for stop of the engine, a drive unit drives the actuator to shift the pinion toward the ring gear to be engaged with the ring gear. The drive unit rotatably drives the motor with the pinion being engaged with the ring gear to thereby crank the crankshaft.

method and device for determining a starter speed of a starter of a starter system

A method and device for determining a starter speed of a starter of a start-stop system. At least one electrical variable of the starter is ascertained during a run-up of the starter, and the current starter speed of the starter is determined as a function of it.

Method and apparatus for controlling an engine of a motor vehicle

A method and apparatus for controlling the operation of an engine of a motor vehicle is disclosed in which the engine is restarted while the vehicle is in motion by bump starting it if the speed of the vehicle falls within predetermined speed limits but is otherwise restarted using a starter motor. The number of starts for which the starter motor is used is thereby reduced advantageously reducing wear of the starter motor and increasing the life and/or reducing the duty cycle of the battery or source of power used for the starter motor.

Safety improvement method of idle stop and go function

A safety improvement method of an Idle Stop and Go (ISG) function may include: recognizing initial conditions that senses whether an engine is restarted, when the engine is restarted by the ISG, and whether a driver operates a vehicle, and determines whether to warn the driver; warning the driver that makes the driver recognize that the engine is restarted if it is determined to warn the driver in recognizing initial conditions; and stopping the warning that stops warning the driver after warning the drive has been executed. Warning the drive may be achieved by an alarm generated from a buzzer for a predetermined time and a visual screen that is provided for the driver.

Engine systems with efficient start control logic

An engine system for starting a gas turbine engine is provided. The system includes a starter generator coupled to the gas turbine engine and configured to provide torque to the gas turbine engine and a controller coupled to the starter generator and configured to provide a command signal to the starter generator. The starter generator provides the torque to the gas turbine engine based on the command signal, and the controller is configured to command the starter generator at a dwell speed until ignition.

Engine start assist system

An arrangement and a method are provided for improving performance of a start assist system for an internal combustion engine of a vehicle comprising: a start/stop system, a primary source of electrical energy, a secondary source of electrical energy, an electrical starter motor, an engine control unit, and additional vehicle electrical loads. A start controller is arranged such that the starter motor and engine control unit are operable with power supplied from the primary source of electrical energy at an initial cold starting attempt. If reset of the engine control unit occurs during the first cold starting attempt, the start controller is arranged such that the starter motor is operable with power supplied from the primary source of electrical energy and the engine control unit is operable with power supplied from the secondary source of electrical energy for an additional cold starting attempt.

Methods and systems for adjusting cylinder air charge

Systems and methods for improving operation of an engine are presented. In one example, a position of a throttle is adjusted along with other actuators to improve engine starting.

Induction motor-permanent magnet generator tandem configuration starter-generator for hybrid vehicles

Disclosed in the present invention is a tandem starter-generator construction that includes an induction motor-generator, a permanent magnet motor-generator and power transmission unit disposed adjacent to the motor-generators. The induction motor-generator is utilized predominantly as a motor to provide mechanical power at relatively high efficiency as a motor, and as a generator to provide electrical power during regenerative braking. The permanent magnet motor-generator is used predominantly as a generator for very high efficiency power conversion and to capture additional electrical power during regenerative braking to compensates for the regenerative energy captured at lower efficiency by the induction motor-generator. Accordingly, the tandem motor-generator construction disclosed herein overcomes the drawbacks of low efficiency of an induction motor-generator operating in regenerative mode and a permanent magnet motor-generator magnetic drag losses during periods of non-utilization at high speeds in order to improve fuel efficiency of a parallel hybrid vehicle.

Hybrid powertrain with geared starter motor and belt alternator starter and method of restarting an engine

A hybrid powertrain has an engine, a starter motor, and a gear train that connects the starter motor with the engine, and a motor/generator. A belt drive train connects the motor/generator with the engine. The powertrain has a first energy storage device with a first operating range of voltage and a second energy storage device with a second operating range of voltage at least partially in common with the first operating range of voltage. A controller places a switching device in an on-state so that the first energy storage device is connected with the second energy storage device or in an off-state in which the first energy storage device is disconnected from the second energy storage device. The controller causes the switching device to be in the off-state and the starter motor and the motor/generator to be powered with energy from the first energy storage device to restart the engine.

METHOD FOR STARTING A COMBUSTION ENGINE IN A HYBRID DRIVELINE

Method is disclosed to start a combustion engine in a hybrid powertrain, comprising a gearbox with input and output shafts; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears; a gear pair connected with the first main shaft, first planetary gear, and output shaft; and a gear pair connected with the second main shaft, second planetary gear and output shaft. The method comprises: determining a desired torque in the output shaft and a torque in a combustion engine output shaft required to start the combustion engine and controlling the first and second electrical machines such that the desired torque in the output shaft and the torque required in the combustion engine output shaft is achieved. 1. A method to start a combustion engine in a hybrid powertrain , comprising a gearbox with an input shaft and an output shaft; a first planetary gear , connected to the input shaft and a first main shaft; a second planetary gear , connected to the first planetary gear and a second main shaft; a first electrical machine , connected to the first planetary gear; a second electrical machine , connected to the second planetary gear; at least one gear pair , connected with the first main shaft , and therefore with the first planetary gear and the output shaft; and at least one gear pair , connected with the second main shaft , and therefore with the second planetary gear and the output shaft , wherein the combustion engine , via the input shaft , is connected with a first planetary wheel carrier , arranged in the first planetary gear and wherein the second main shaft is connected with a planetary wheel carrier , arranged in the second planetary gear ,wherein said method comprises:{'sub': 'Drv', 'a) determining a desired torque (T) in the output shaft;'}{'sub': 'Flywheel', 'b) ...

Drive train of a motor vehicle having an internal combustion engine and a starter generator

A drive train ( 1 ) of a motor vehicle has an internal combustion engine ( 2 ) with a crankshaft ( 6 ). A transmission ( 3 ) is connected downstream of the internal combustion engine ( 2 ) to drive at least one axle ( 5 ) of the motor vehicle. A starter generator ( 23 ) is assigned to the internal combustion engine ( 2 ). The starter generator ( 23 ) is attached to the crankshaft ( 6 ) by two separate drive trains ( 13, 22; 24, 25 ). One ( 24, 25 ) of the drive trains ( 13, 22; 24; 25 ) has a shiftable clutch ( 29 ) and the other ( 13, 22 ) of the drive trains ( 13, 22; 24, 25 ) has a shiftable clutch ( 32 ) or a freewheel ( 11 ) that is active during a starter mode of the starter generator ( 23 ). The drive train ensures an optimum start capability of the cold internal combustion engine and additionally permits electric boosting of the internal combustion engine.

Pre-lubrication and skip fire operations during engine cranking

A system includes a valve actuation system, a pre-lubrication pump coupled to a lubrication circuit and configured to provide oil to the valve actuation system, a catalyst for receiving and treating exhaust gasses, and a controller. The controller is configured to identify an engine start request and determine whether the catalyst temperature is below a first threshold value. In response to determining that the catalyst temperature is below the first threshold value, the controller actuates the pre-lubrication pump to direct lubricant to the valve actuation system, controls the valve actuation system to deactivate at least one cylinder of an engine, and, subsequent to deactivating the at least one cylinder of the engine, cranks the engine.

Jumper cable and ignition control method

The embodiment of the present disclosure discloses a jumper cable and an ignition control method, which are applicable to the field of electronic technology. The jumper cable includes a main control module, and a startup detection module, a voltage-stabilizing power supply module, a voltage detection module, a temperature detection module, a relay control module, a startup communication module, a positive ignition clip and a negative ignition clip connected with the main control module. The relay control module includes a relay switch. The first end of the relay switch is connected with the voltage-stabilizing power supply module, which is connected with the positive ignition clip. The second end of the relay switch is connected with the startup detection module and the negative ignition clip. The startup communication module is connected with the startup power supply.

Method and system for determining causes of engine stop using ignition power monitoring

A method for determining causes of engine stop using ignition power monitoring may include performing ignition power holding determination to determine, in a state in which a vehicle is started and an engine is driven, whether the vehicle is in a key-on state, to which power is consistently applied, in order to hold the starting of the engine of the vehicle. The method also includes performing power-off recognition time comparison by comparing, when ignition power is turned off and the engine is stopped, a time required to recognize ignition power-off in an ECU (Electronic Control Unit) with a preset ignition power-off recognition time for failure determination. The method also performs a power abnormality determination by determining whether the engine is stopped due to ignition power failure when the time required to recognize the ignition power-off in the ECU is not greater than the preset ignition power-off recognition time.

TWO-SCALE COMMAND SHAPING FOR REDUCING VEHICLE VIBRATION DURING ENGINE START OR RESTART

According to some aspects, methods and systems are presented to reduce noise, vibration, and harshness during start or restart of an engine. In some embodiments, a torque source such as an electric machine provides a torque to an internal combustion engine during restart to counteract vibrations of the system caused by the output torque of the internal combustion engine. The torque provided by the torque source can be expressed as a sum of a non-linear component and an input shaped component. A perturbation technique can be utilized for separating the scales and isolating the non-linear response of the system. Command shaping can be applied to the remaining, linear response of the system. Parameters used in the modeling of the internal combustion engine and the system may be pre-determined based on vehicle design and operating conditions, or may be iteratively estimated based on previous restarts during vehicle operation. 2. The method of claim 1 , wherein the non-linear component of the command signal is further based at least in part on a crank angle of the ICE as a function of time claim 1 , wherein the crank angle is the angle of rotation of a crankshaft associated with motion within a cylinder of the ICE.3. The method of claim 2 , wherein the approximation of the non-linear torque dynamics of the ICE comprise an asymptotic approximation of the crank angle claim 2 , wherein the asymptotic approximation of the crank angle includes a zeroth-order term and a first order term and the approximation of the non-linear torque dynamics of the ICE is determined by equating the acceleration of the first-order term and its derivatives to zero.4. The method of claim 1 , wherein the input shaped component of the command signal is configured to reduce the vibration of the first mechanical component or first group of mechanical components claim 1 , the vibration of the first mechanical component or first group of mechanical components being caused by a linear ramp-up of torque ...

Engine starter

An engine starter of a vehicle switching between EV traveling and HV traveling, includes: an engine starting unit to start an engine based on a starting operation by a driver during the EV traveling; and a starting operation switching unit to switch the starting operation to a first starting operation while the vehicle is traveling in an outside area of a preset emission gas regulation area and to switch the starting operation to a second starting operation while the vehicle is traveling in an inside area of the emission gas regulation area. Further, while the vehicle is performing the EV traveling in the inside area of the emission gas regulation area, the engine starting unit is not start the engine when the first starting operation is performed by the driver and to start the engine when the second starting operation is performed by the driver.

Start Control System for Engine and Start Control Method for Engine

A start control system for an engine is provided. The engine is a direct injection engine, and the engine is provided with a starter motor. The start control system includes an electronic control unit. The electronic control unit is configured to execute fuel injection and ignition in a cylinder in an expansion stroke so as to start the engine without using the starter motor, when the electronic control unit determines that a restart condition of the engine is satisfied immediately before the engine is stopped. The electronic control unit is configured to control an ignition delay time based on at least one of a rotational direction and a rotational speed of a crankshaft, during execution of the fuel injection. The ignition delay time is a period of time from fuel injection into the cylinder in the expansion stroke to ignition. 1. A start control system for an engine , the engine being a direct injection engine , the engine being provided with a starter motor , an electronic control unit configured to execute fuel injection and ignition in a cylinder in an expansion stroke so as to start the engine without using the starter motor, when the electronic control unit determines that a restart condition of the engine is satisfied immediately before the engine is stopped,', 'the ignition delay time being a period of time from fuel injection into the cylinder in the expansion stroke to ignition.', 'the electronic control unit being configured to control an ignition delay time based on at least one of a rotational direction and a rotational speed of a crankshaft, during execution of the fuel injection,'}], 'the start control system comprising'}2. The start control system for the engine according to claim 1 , wherein:the electronic control unit is configured to determine a rotating condition of the crankshaft; andthe electronic control unit is configured to set the ignition delay time to a shorter time as the rotational speed of the crankshaft is higher, when the electronic ...

METHODS AND SYSTEMS FOR CONTROLLING A STARTER MOTOR

Methods and systems are provided for dealing with a change of mind event during an automatic shut-down of an engine in which the speed at which a starter motor used to restart the engine is disengaged is based upon the comparison of current engine speed (N) with a cranking speed limit (S). In one example, during an engine restart while the engine is spinning down, the starter motor may crank the engine to a threshold cranking engine speed adjusted based on a position of the gear. 1. A method of controlling a starter motor of a powertrain system having an engine and a driveline including a gearbox driven by the engine via a friction clutch comprising: when there is requirement to use the starter motor to restart the engine following a change of mind during an automated engine stop , using the starter motor to crank the engine and disengaging the starter motor when a cranking speed limit is reached wherein the cranking speed limit is based upon whether the driveline is confirmed to be fully open.2. The method of claim 1 , wherein the cranking speed limit is a first cranking speed limit when the driveline is confirmed to be fully open and wherein the cranking speed limit is a second cranking speed limit when the driveline is not confirmed to be fully open.3. The method of claim 2 , further comprising claim 2 , estimating a state of the driveline and claim 2 , in response to the state of the driveline being fully open claim 2 , setting the cranking speed limit to the first cranking speed limit and in response to the state of the driveline not being open claim 2 , setting the cranking speed limit to the second cranking speed limit.4. The method of claim 3 , wherein estimating the state of the driveline comprises estimating whether a gearbox is in neutral via a gearbox engagement state sensor.5. The method of claim 4 , wherein the state of the driveline is estimated to be fully open in response to the gearbox being in a neutral position claim 4 , and the state of the ...

START CONTROLLER FOR ENGINE

In the cases where a reverse operation of a crankshaft is performed after fuel injection and ignition in a cylinder in a power stroke and it is determined that an engine start is failed, a starter motor is operated, and fuel injection and ignition are executed in the cylinder in the compression stroke to start an engine. 1. A start controller for an engine , the engine including a plurality of cylinders and a crankshaft , and the engine being a cylinder-injection engine , the start controller comprising:a starter motor; and execute fuel injection and ignition in a cylinder in an expansion stroke when a restart condition is established immediately before a stop of the engine,', 'determine whether a reverse operation of the crankshaft has been performed after the fuel injection and the ignition in the cylinder in the expansion stroke are executed, and', 'operate the starter motor and execute the fuel injection and the ignition in a cylinder in a compression stroke to start the engine, when the electronic control unit determines that the reverse operation of the crankshaft has been performed., 'an electronic control unit configured to'}2. The start controller according to claim 1 , wherein determine whether rotation of the crankshaft has been stopped after the fuel injection and the ignition in the cylinder in the expansion stroke are executed, and', 'operate the starter motor and execute the fuel injection and the ignition in the cylinder in the compression stroke to start the engine, when the electronic control unit determines that the rotation of the crankshaft has been stopped., 'the electronic control unit is configured to'} The disclosure of Japanese Patent Application No. 2016-164917 filed on Aug. 25, 2016 including the specification, drawings and abstract is incorporated herein by reference in its entirety.The disclosure relates to a controller that restarts an engine without use of a starter motor when a restart condition is established immediately before an ...

Method and system for starting an internal combustion engine

A method and a system for starting an internal combustion engine (ICE) having a crankshaft and an electric turning machine (ETM) operatively connected to the crankshaft are disclosed. An absolute angular position of the crankshaft related to a top dead center position of a piston in a combustion chamber of the ICE is determined. Electric power is delivered to the ETM at a first level to rotate the crankshaft. Electric power is then delivered to the ETM at a second level greater than the first level when the piston reaches a predetermined position before the TDC position. Fuel is injected in the combustion chamber after the piston has passed beyond the TDC position. The fuel is then ignited. In an implementation, the ICE is started in less than 110 degrees of rotation of the crankshaft.

COMBUSTION ENGINE STARTER SYSTEMS AND METHODS

A vehicle includes a combustion engine configured to crank start via torque applied to a crankshaft. The vehicle also includes a first electric machine to drive vehicle wheels powered by a high-voltage power source and coupled to the crankshaft and a second electric machine powered by a low-voltage power source and coupled to the crankshaft. The vehicle further includes a controller programmed to monitor a battery state of charge (SOC) and a voltage of the high-voltage power source. The controller is also programmed to activate only the second electric machine to attempt to crank start the engine in response to either of the SOC or the voltage being less than a predetermined threshold, and activate the first electric machine to attempt to crank start the engine in response to each of the SOC and the voltage being greater than a predetermined threshold. 1. A vehicle comprising:a combustion engine configured to crank start via torque applied to a crankshaft;a first electric machine to drive vehicle wheels powered by a high-voltage power source and coupled to the crankshaft;a second electric machine powered by a low-voltage power source and coupled to the crankshaft; and in response to an engine start request and each of a state of charge (SOC) and voltage of a high-voltage power source being greater than respective SOC and voltage thresholds, activate the first electric machine to attempt to cold crank start the engine,', 'in response to a slowing of engine rotation being greater than a slowing threshold during the crank start of the engine by the first electric machine, activate the second electric machine to provide supplemental torque to assist the first electric machine in the attempt to cold crank start the engine such that the first electric machine and second electric machine are cranking the engine at a same time, and', 'in response to an unsuccessful engine crank start attempt by a-combined activation of both the first electric machine and the second electric ...

System Identification Method and System Identification Device

A system identification method executed by a system identification device that estimates a response of a system having a current flowing in a battery as input and an overvoltage of the battery as output, comprises: a first step of identifying the system by applying a model of the battery including a FIR model and an ARX model to the system, based on time series data of each of the current flowing in the battery and the overvoltage of the battery in a predetermined period; and a second step of estimating, based on the model of the battery, the overvoltage of the battery output from the system at an estimation target time after an input start time in the case where no current is input before the input start time and the current is input to the system from the input start time onwards.

RESTART CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

A restart control device is applied to a vehicle which is provided with an internal combustion engine, an electric motor, a driving wheel, and a clutch. The restart control device has a restart-condition determining portion which determines whether a restart condition for restarting the internal combustion engine is established while the vehicle is coasting; a push-start portion which starts the internal combustion engine by a push-start; a start-up portion which starts the internal combustion engine by use of an electric motor; and a doubly start-up portion which tries to start the internal combustion engine by one of the push-start portion and the start-up portion when the restart-condition determining portion determines that the restart condition is established. The doubly start-up portion tries to start the internal combustion engine by another one of the push-up portion and the start-up portion when the internal combustion engine has not been started. 1. A restart control device applied to a vehicle which is provided with an internal combustion engine , an electric motor which is connected to an output shaft of the internal combustion engine so that a torque is applied to the output shaft to increase a rotation speed of the internal combustion engine , a driving wheel , and a clutch device which is engaged or disengaged to permit or prohibit a power transmission between the output shaft of the internal combustion engine and the driving wheel , and a vehicle speed detecting portion which detects a vehicle speed , the restart control device comprising:a performing-condition determining portion which determines whether a performing condition is established for the vehicle to perform a coasting;a coasting portion which terminates a fuel supply to the internal combustion engine and disengages the clutch device to perform a coasting of the vehicle when the performing-condition determining portion determines that the performing condition is established;a restart- ...

METHOD FOR STARTING A COMBUSTION ENGINE IN A HYBRID DRIVELINE

The invention relates to a method to start a combustion engine in a hybrid powertrain by a) disconnecting rotatable components of a first planetary gear from each other, b) disconnecting rotatable components of a second planetary gear from each other, c) preventing rotation of at least one gear pair, which is connected with the first planetary gear and an output shaft and at least one gear pair, which is connected with the second planetary gear and the output shaft, prevent rotation of the output shaft, and e) activating a first electrical machine connected to the first planetary gear, and/or a second electrical machine connected to the second planetary gear, so that the combustion engine starts. 1. A method to start a combustion engine in a hybrid powertrain , comprising a gearbox with an input shaft and an output shaft; a first planetary gear , connected to the input shaft and a first main shaft; a second planetary gear , connected to the first planetary gear and a second main shaft; a first electrical machine , connected to the first planetary gear; a second electrical machine , connected to the second planetary gear; at least one gear pair , connected with the first main shaft , and therefore with the first planetary gear and the output shaft; at least one gear pair , connected with the second main shaft , and therefore with the second planetary gear and the output shaft; at least one gear pair , connected with a countershaft and with the output shaft , wherein the combustion engine , via the input shaft , is connected with a first planetary wheel carrier , arranged in the first planetary gear , and wherein the second main shaft is connected with a planetary wheel carrier , arranged in the second planetary gear , wherein the gear pairs are connected to the output shaft , via the countershaft and the gear pair , said method comprising:a) disconnecting the rotatable components of the first planetary gear from each other;b) disconnecting the rotatable components of ...

Automatic engine start-stop control during driver exit events

A vehicle includes an engine and a controller programmed to autostop and autostart the engine. The controller is further programmed to, in response to receiving signals indicative of a driver exiting the vehicle while the engine is auto stopped, autostart the engine, and after expiration of a predetermined duration, autostop the engine and inhibit vehicle propulsion until an ignition cycle is initiated.

System and Method for Starting a Multi-Engine Power System

A power system is provided that includes a plurality of engines and a compressed air source in communication with the plurality of engines and configured to assist in starting the engines. A plurality of engine controllers are provided each associated with a respective one of the plurality of engines. The engine controllers are communicatively linked with each other and upon receipt of a signal to start the plurality of engines are configured to stagger the starts of the plurality of engines according to a predetermined order and to apply an air start system charge delay timer before starting an individual engine when the compressed air source is in a first state in which the compressed air source is unable to assist starting at least one of the plurality of engines. 1. A power system comprising:a plurality of engines;a compressed air source in communication with the plurality of engines and configured to assist in starting the engines;a plurality of engine controllers each associated with a respective one of the plurality of engines, the engine controllers being communicatively linked with each other and upon receipt of a signal to start the plurality of engines configured to stagger the starts of the plurality of engines according to a predetermined order and to apply an air start system charge delay timer before starting an individual engine when the compressed air source is in a first state in which the compressed air source is unable to assist starting at least one of the plurality of engines.2. The power system of wherein each engine has an associated generator driven by the respective engine.3. The power system of further including a pressure sensor configured to provide signals indicative of a pressure associated with the compressed air source.4. The power system of wherein at least one of the engine controllers is in communication with the pressure sensor and wherein the plurality of engine controllers are configured to communicate with each other regarding ...

OPTIMIZING THE AUTOMATIC ENGINE START/STOP MECHANISM FOR DRIVING OPERATION

A system and method for starting/stopping an engine in a moving vehicle include stopping the engine, by a controller, in response to a time needed to start the engine from a stopped state and attain an engine speed corresponding to a driveshaft speed when stopping the engine being less than a target time, and starting the engine in response to the time needed reaching the target time. A start/stop vehicle having an engine includes a driveshaft speed sensor and a controller configured to stop the engine while the vehicle is moving with a vehicle speed below a threshold speed in response to a time associated with starting the engine and powering a driveshaft to attain a driveshaft speed measured by the driveshaft speed sensor and stored from a previous engine stopping event being less than a threshold time. 1. A method for starting/stopping an engine in a moving vehicle , comprising:stopping the engine, by a controller, in response toa time needed to start the engine from a stopped state and attain an engine speed corresponding to a driveshaft speed when stopping the engine being less than a target time; andstarting the engine in response to the time needed reaching the target time.2. The method of wherein the time needed increases with increasing driveshaft speed.3. The method of further comprising determining the time needed to start the engine from a stopped state and attain an engine speed corresponding to a driveshaft speed when stopping the engine based on a currently engaged gear of a vehicle transmission and current velocity of the vehicle.4. The method of further comprising:detecting a transmission neutral position to indicate a gear shift after stopping the engine.5. The method of further comprising:detecting a gear shift in response to a transmission gear lever parity check between a gear selected upon stopping the engine and a current gear.6. The method of further comprising accessing a stored relationship between driveshaft speed and vehicle speed to ...

Hybrid vehicle control device

A control device of a hybrid vehicle has an engine and an electric motor, the hybrid vehicle being configured to perform motor running using only the electric motor for running and engine running using at least the engine for running, the control device comprising: a first starting portion starting the engine by using the electric motor; and a second starting portion starting the engine without using the electric motor, the control device being configured to expand a range of performing the motor running when the engine is started by the second starting portion as compared to when the engine is started by the first starting portion.

INTERMITTENT RESTART FOR AUTOMATIC ENGINE STOP START SYSTEM

A disclosed method of automatically stopping and restarting a vehicle engine determines if one or more stop/start enablement condition has been met. If the stop/start enablement condition or conditions have been met, the method initiates an engine shutdown. If a restart request is made before the engine reaches a predetermined threshold speed, then a first restart sequence is initiated. If a restart request is made when the engine speed is less than the predetermined threshold speed but still greater than 0, then a second restart sequence is initiated. 1. (canceled)2. A vehicle , comprising:(a) a vehicle having an engine;(b) an engine speed sensor configured to sense engine speed;(c) a starter operably coupled to the engine;(d) an auxiliary motor operably coupled to the engine; (i) determine if a stop enablement condition has been met;', '(ii) initiate an engine shutdown by causing a fuel supply to the engine to be stopped and by activating a decompression device to decompress at least one cylinder of the engine;', '(iii) determine that an intermittent restart has been requested;', '(iv) determine, after determining that the intermittent restart has been requested, that the engine speed is below a predetermined threshold;', '(v) cause, based on determining that the engine speed is below the predetermined threshold, the auxiliary motor to drive the engine speed to at least the predetermined threshold speed; and', '(vi) initiate, after causing the auxiliary motor to drive the engine speed to at least the predetermined threshold, a restart of the engine by deactivating the decompression device and causing fuel to be supplied to the engine., '(c) a controller configured to receive signals from the engine speed sensor and to control delivery of fuel to the engine, wherein the controller is programmed to3. The vehicle of claim 2 , wherein the controller is further configured to: in response to detecting another intermittent restart request and detecting that the engine ...

Battery Key, Starter And Improved Crank

A system for starting an engine of a vehicle has a fuel injector injecting fuel into a closed intake port to form an air fuel mixture. The system also includes an actuator rotating a crankshaft in a first direction to open the intake port by moving a piston within a cylinder coupled to the crankshaft. A combustion chamber defines between the cylinder and the port receiving the air fuel mixture through the intake port. The actuator rotates the crankshaft in a second direction to close the intake port. A spark plug ignites the air fuel mixture to start the engine. The engine also includes many other disclosed features.

Control device for vehicle

A control device is provided for controlling a vehicle that includes: an internal combustion engine having a fuel injection valve, an ignition device and an in-cylinder pressure sensor; and an electric motor configured to rotate to drive a crankshaft of the internal combustion engine. The control device is configured, when an assist torque is applied to the crankshaft by means of the electric motor, to perform an ignition start-up operation that starts fuel injection and ignition from an expansion stroke cylinder to start up the internal combustion engine. The assist torque is a torque by which the crankshaft is not caused to rotate, and is greater when an in-cylinder pressure in a compression stroke cylinder is higher.

Vehicle propulsion systems and methods

A host vehicle includes a combustion engine configured to provide a propulsion torque to satisfy a propulsion demand. The vehicle also includes at least one sensor configured to detect a position of a reference vehicle. A vehicle controller is programmed to determine a path between a current host vehicle location and an upcoming intersection. The controller is also programmed to forecast a path clearance time at which the host vehicle is able to traverse the intersection in response to sensor data indicating the reference vehicle moving within the path ahead of the host vehicle. The controller is further programmed to deactivate the engine prior to a host vehicle stop based on the path clearance time being greater than a time threshold.

STOP-START VEHICLE SYSTEM AND METHOD

A vehicle and method of controlling a vehicle having an engine and braking system having an associated braking pressure include stopping the engine responsive to the brake pressure being above a first threshold, restarting the engine responsive to the brake pressure falling below a second threshold, reducing the second threshold for a predetermined time after the vehicle speed falls below a speed threshold, and resetting the second threshold after the predetermined time. The predetermined time may be modified based on input from a user interface or a user-selected vehicle operating mode. 1. A method of controlling a vehicle having an engine and braking system having an associated brake pressure , comprising , by a vehicle controller:stopping the engine responsive to the brake pressure being above a first threshold;restarting the engine responsive to the brake pressure falling below a second threshold;reducing the second threshold for a predetermined time after the vehicle speed falls below a speed threshold; andresetting the second threshold after the predetermined time.2. The method of wherein the speed threshold is zero.3. The method of wherein stopping the engine comprises shutting down the engine only when the speed of the vehicle is below the speed threshold.4. The method of wherein reducing the second threshold comprises reducing the second threshold to less than a brake pressure at which the vehicle is held stationary by the braking system.5. The method of wherein reducing the second threshold is performed independently of the first threshold value.6. The method of wherein the first and second thresholds are equal prior to reducing the second threshold.7. The method of wherein the first threshold is greater than the second threshold.8. The method of further comprising determining a rate of change of speed of the vehicle claim 1 , wherein the speed threshold comprises a rate of change of speed.9. The method of wherein the predetermined time is based at least ...

Apparatus and method for starting engine of mild hybrid electric vehicle

An apparatus for starting an engine of a mild hybrid electric vehicle may include: an ignition switch including a plurality of contact points; an external temperature detector configured for detecting an external temperature of the mild hybrid electric vehicle; an SOC detector configured for detecting a state of charge (SOC) of a battery; a mild starter & generator (MHSG) including a stator and a rotor disposed inside the stator, and starting the engine or generating electricity according to an output of the engine; a starter starting the engine; an MHSG wheel rotating integrally with the rotor, and having at least three teeth on a circumference thereof; an MHSG position detector configured for detecting positions of the teeth; and a controller determining a top dead center (TDC) of a predetermined cylinder based on a signal of the MHSG position sensor.

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

A control device is configured to read a required operation point of the internal combustion engine at the moment of restart following after intermittent stoppage, and to execute, when it is determined that the required operation point belongs to a reduced-cylinder operation allowed region and also to a reduced-cylinder operation restricted region which lies on a high load side of the reduced-cylinder operation allowed region, an all-cylinder operation and then move into a reduced-cylinder operation. When it is determined that the required operation point belongs to the reduced-cylinder operation allowed region but not to the reduced-cylinder operation restricted region, the control device is configured to switch the engine to the reduced-cylinder operation without execution of the all-cylinder operation. 1. A control device for an internal combustion engine having a plurality of cylinders , the internal combustion engine being capable of executing an operation at a predetermined target air-fuel ratio selectively either a reduced-cylinder operation where a part of the plurality of cylinders are operated and a rest of the plurality of cylinders are halted or a particular operation where more cylinders are operated than in the reduced-cylinder operation , and being capable of restarting following after intermittent stoppage ,the control device being configured by a computer executing a computer program to control the internal combustion engine so that the reduced-cylinder operation is executed in a case that a required operation point of the internal combustion engine belongs to a predetermined reduced-cylinder operation allowed region, whereinthe control device is further configured by the computer executing the computer program to, in a case that the required operation point of the internal combustion engine belongs to the reduced-cylinder operation allowed region at a moment of restart following after the intermittent stoppage of the internal combustion engine, ...

System and method for engine idle stop control

A system and method for controlling engine idle stop in a hybrid vehicle balance the extra electrical load imposed on the vehicle during engine stop with the electrical energy saved to achieve net fuel savings. Predictive information is used to determine potential vehicle stops and corresponding stop durations during a time window. To achieve net fuel savings, the engine stop duration time must be long enough for the electrical energy savings to cover electrical load added to the system. If the predicted stop duration time is long enough to yield net fuel savings, engine stop may be initiated. If not, engine stop may be inhibited.

START-UP SUPPORT INCLUDING CLUTCH BITE POINT ADAPTION

A method for start-up support in a motor vehicle having a drive motor includes: detecting a possible start-up process; detecting a value for the clutch position; comparing the detected value with a predetermined first value range for the clutch position; and carrying out a start-up support if the detected value lies within the first value range.

Hybrid vehicle, controller for hybrid vehicle, and control method for hybrid vehicle

A hybrid vehicle includes an engine, a motor, a power storage device connected to the motor, and an electronic control unit. The electronic control unit executes power storage capacity decreasing control in a current trip and executes power storage capacity recovering control in a next trip when parking at a predetermined point is predicted. The electronic control unit limits execution of the power storage capacity decreasing control in the current trip when heavy-load traveling with a load heavier than a predetermined load is predicted to be performed within a predetermined period after the start of the next trip when the next trip is started at a predetermined point.

SYSTEMS AND METHODS FOR AUTOMATICALLY MONITORING AND CONTROLLING TEMPERATURE FOR A VEHICLE

In some embodiments, a vehicle includes a temperature monitoring controller. The temperature monitoring controller is a processor, control module, or other suitable hardware that is configured to receive temperature sensor values from an engine control module (ECM) when an ignition bus is in a powered on state, and to decide when the engine should be automatically started in order to maintain a temperature above a low temperature threshold. The temperature monitoring controller periodically causes an ignition bus of the vehicle to be placed in the powered on state when the engine is shut down in order to collect temperature sensor values. The temperature monitoring controller determines whether to automatically start the engine, and if not, determines how long to wait before collecting temperature sensor values again based on a rate of change of the temperature sensor values. 1. A vehicle configured to automatically manage temperature , comprising:a temperature monitoring controller;a fluid temperature sensor; andan engine; obtain a current fluid temperature value for a fluid from the fluid temperature sensor;', 'determine an interval time representing a time period after which a fluid temperature is predicted to drop below a low temperature threshold, wherein the determination is based on at least a previous interval time, a previous fluid temperature value, and the current fluid temperature value;', 'in response to determining that the interval time is greater than a threshold interval time, wait for the interval time before obtaining a subsequent fluid temperature value from the fluid temperature sensor; and', 'in response to determining that the interval time is not greater than the threshold interval time, cause the engine of the vehicle to be started., 'wherein the temperature monitoring controller is configured to2. The vehicle of claim 1 , wherein obtaining a current fluid temperature value from an fluid temperature sensor comprises powering on an ignition ...

Standby generator and controls for generator exercise cycle

A method of exercising a generator includes detecting a temperature of the generator by a temperature sensor, if the temperature of the generator is above a predetermined temperature, activating, by a controller, a starter motor of the generator, and performing, by the controller, an exercise test, and if the temperature of the generator is below the predetermined temperature, not activating, by the controller, the starter motor.

INTERNAL-COMBUSTION ENGINE STARTING DEVICE, VEHICLE, AND INTERNAL-COMBUSTION ENGINE STARTING METHOD

Provided is an internal-combustion engine starting device in which a control unit controls a motor to realize a first starting mode of starting an internal-combustion engine by increasing a rotation speed of the internal-combustion engine to a predetermined first rotation speed NE by the motor and a second starting mode of starting the internal-combustion engine by increasing the rotation speed of the internal-combustion engine to a second rotation speed NE set higher than the first rotation speed NE and set based on a temperature of a coolant by the motor. 112-. (canceled)13. An internal-combustion engine starting device comprising:an internal-combustion engine unit which includes an internal-combustion engine, a cooling unit cooling the internal-combustion engine by a coolant, a temperature acquiring unit acquiring a temperature of the coolant, and a rotation speed acquiring unit acquiring a rotation speed of the internal-combustion engine; anda motor unit which includes a motor starting the internal-combustion engine and a control unit controlling the motor,wherein the control unit controls the motor to realize a first starting mode of starting the internal-combustion engine by increasing the rotation speed of the internal-combustion engine to a predetermined first rotation speed by the motor and a second starting mode of starting the internal-combustion engine by increasing the rotation speed of the internal-combustion engine to a second rotation speed set higher than the first rotation speed and set based on the temperature of the coolant by the motor, andthe control unit controls the motor to prohibit the realization of the second starting mode in a region in which the temperature of the coolant is lower than a first temperature.14. The internal-combustion engine starting device according to claim 13 ,wherein the control unit controls the motor to set a rotation speed difference between the first rotation speed and the second rotation speed to a value based on ...

Exhaust apparatus for diesel engine

An exhaust apparatus for a diesel engine rapidly burns an unburned deposit in an upstream exhaust catalyst with heat of a heater. The exhaust apparatus includes a downstream exhaust cleaner, an upstream exhaust catalyst provided in an exhaust passage, upstream of the downstream exhaust cleaner, a heater disposed at an exhaust inlet of the upstream exhaust catalyst, and an engine starter apparatus. A control unit controls the power supply to the heater and an engine start process is performed by the engine starter apparatus. A start command unit is connected to the control unit. When the engine has been stopped and then the start command unit gives the control unit a start command, the control unit powers the heater without performing an engine start process, thereby keeping the engine stopped for a predetermined period of time after the start command has been given, and subsequently performing the engine start process.

Control device for internal combustion engine

A control device is for an internal combustion engine including a throttle valve and a variable valve mechanism, and configured to be operated at a prescribed target air-fuel ratio and capable of restarting from an intermittent stop. The control device includes an electronic control unit configured to start the internal combustion engine after starting an intake air amount reduction control, when a fuel injection amount equal to or larger than a prescribed amount is required and an intermittent stop time is equal to or longer than a prescribed time in a case of the restart from the intermittent stop. The intermittent stop time is a stop time from an immediately preceding intermittent stop to a current restart of the internal combustion engine. The intake air amount reduction control is a control of reducing the intake air amount by operating the variable valve mechanism with the throttle valve kept fully closed.

APPARATUS AND METHOD FOR STARTING ENGINE OF MILD HYBRID ELECTRIC VEHICLE

An apparatus for starting engine of mild hybrid electric vehicle according to an exemplary embodiment of the present disclosure may include: an ignition switch including a plurality of contact points; A gradient detector configured for detecting a road gradient of a road on which the vehicle is located; a state of charge (SOC) detector configured for detecting an SOC of a high voltage battery; a mild hybrid starter & generator (MHSG) including a stator and a rotor disposed inside the stator, and starting the engine or generating electricity by an output of the engine; a starter which is able to start the engine independently from the MHSG; an MHSG wheel rotating integrally with the rotor; an MHSG position detector configured for detecting a position of the MHSG; and a controller configured for determining a top dead center (TDC) of a predetermined cylinder based on a signal of the MHSG position detector. 1. An apparatus for starting an engine of a mild hybrid electric vehicle , the apparatus comprising:an ignition switch including a plurality of contact points;a gradient detector configured to detect a road gradient of a road on which the vehicle is located;a state of charge (SOC) detector configured to detect a state of charge (SOC) of a high voltage battery;a mild hybrid starter & generator (MHSG) including a stator and a rotor disposed inside the stator, the MHSG configured to start the engine or generate electricity by an output of the engine;a starter configured to start the engine independently from the MHSG;an MHSG wheel rotating integrally with the rotor;an MHSG position detector configured to detect a position of the MHSG; anda controller configured to determine a top dead center (TDC) of a predetermined cylinder based on a signal of the MHSG position detector,wherein the controller is configured to operate the MHSG and the starter to start the engine when the road gradient is greater than a predetermined gradient and the SOC of the high voltage battery is ...

APPARATUS AND METHOD FOR STARTING ENGINE OF MILD HYBRID ELECTRIC VEHICLE

An apparatus for starting engine of mild hybrid electric vehicle may include: an ignition switch; an ambient temperature detector; a state of charge (SOC) detector; a mild starter & generator (MHSG) including a stator and a rotor mounted inside the stator; a starter which is configured to start the engine independently of the MHSG; a converter which is configured to voltage-drop an electric power of a high voltage battery and supply it to the low voltage battery or the starter; an MHSG wheel rotating integrally with the rotor; an MHSG position detector; and a controller configured for determining a top dead center (TDC) of a predetermined cylinder based on a signal of the MHSG position detector. 1. An apparatus for starting an engine of a mild hybrid electric vehicle , the apparatus comprising:an ignition switch including a plurality of contact points;an ambient temperature detector configured for detecting an ambient temperature;a state of charge (SOC) detector configured for detecting a state of charge (SOC) value of a low voltage battery;a mild starter & generator (MHSG) including a stator and a rotor mounted inside the stator, and configured for starting the engine or generating electricity by an output of the engine;a starter which is configured to start the engine independently from the MHSG;a converter connected to a high voltage battery, the low voltage battery, and the starter and configured for converting an electric power of the high voltage battery into a low voltage and supplying the low voltage to the low voltage battery or the starter;an MHSG wheel connected to the rotor and rotating integrally with the rotor;an MHSG position detector configured for detecting a position of the MHSG wheel; anda controller connected to the MHSG position detector and configured for determining a top dead center (TDC) of a predetermined cylinder based on a signal of the MHSG position detector,wherein the controller connected to the starter is configured to operate the ...

VEHICLE AND METHOD FOR CONTROLLING THE SAME

Disclosed is a vehicle capable of efficiently managing a battery. The vehicle includes the battery, a battery sensor configured to sense an output voltage and an output current of the battery, and a power management device configured to control charging of the battery based on a state of charge (SoC) of the battery. The power management device may calculate an estimated SoC of the battery based on the output current of the battery, calculate an actual SoC based on the output of a battery model corresponding to an input of the output voltage and the output current, and based on an error between the actual SoC and the estimated SoC, activate a power generation control, which controls a generator based on the SoC of the battery, and an idle stop & go (ISG), which turns off an engine during stopping of the vehicle. 1. A vehicle comprising:a battery;a battery sensor configured to sense an output voltage and an output current of the battery; anda power management device configured to control charging of the battery based on a state of charge (SoC) of the battery; calculate an estimated SoC of the battery based on the output current of the battery, calculate an actual SoC based on the output of a battery model corresponding to an input of the output voltage and the output current; and', 'based on an error between the actual SoC and the estimated SoC, activate a power generation control, which controls a generator based on the SoC of the battery, and an idle stop & go (ISG), which turns off an engine during stopping of the vehicle., 'wherein the power management device is configured to2. The vehicle according to claim 1 , wherein the power management device is configured to:input the output voltage and the output current to the battery model when the estimated SoC of the battery is out of an available range of the battery and calculate a first reference SoC based on an output of the battery model;reset the estimated SoC of the battery to the first reference SoC; ...

Control device of vehicle and control method of vehicle

A control device of a vehicle includes: a first gear connected to a crankshaft of an engine; a second gear capable of engaging the first gear; an actuator configure to move the second gear up to a position where the second gear engages the first gear; a motor configured to cause the second gear to rotate; and a controller configured to, when the engine is cranked by driving of the motor in response to elapsing of a predefined period after the actuator is actuated in response to a startup request signal of the engine, adjust a length of the predefined period on the basis of an operating state of a driver and a state of the vehicle at the time of reception of the startup request signal.

Engine control device

In an engine control device, an automatic engine stop control section automatically stops an engine operating when an automatic engine stop condition is satisfied. An engine start control section supplies electric power to a starter to drive the starter when receiving an initial engine start intention signal transmitted from a push starter and when an automatic engine start condition has been satisfied. An engine start completion detection section detects whether the engine start of the engine has finished. An automatic engine stop permission section permits the automatic engine stop control section to stop the engine operating when the automatic engine stop permission section detects that the engine start has finished at a timing when the engine start control section has started the engine after receiving an initial engine start intention detection signal transmitted from the push starter.

Vehicle propulsion systems and methods

A host vehicle includes a combustion engine configured to provide a propulsion torque to satisfy a propulsion demand. The vehicle also includes at least one sensor configured to detect a position of a reference vehicle. A vehicle controller is programmed to determine a path between a current host vehicle location and an upcoming intersection. The controller is also programmed to forecast a path clearance time at which the host vehicle is able to traverse the intersection in response to sensor data indicating the reference vehicle moving within the path ahead of the host vehicle. The controller is further programmed to deactivate the engine prior to a host vehicle stop based on the path clearance time being greater than a time threshold.

Control apparatus for vehicle

A vehicle includes: an internal combustion engine including a fuel injection valve, a spark plug, and an electrically powered motor that rotates a crankshaft; and a controller that causes the internal combustion engine to start in a case where a starting condition is established while the internal combustion engine is stopped. The controller is configured to perform, when the starting condition is established, a first firing-combined starting that injects fuel into the combustion chamber by means of the fuel injection valve and performs, for a first time, a firing that ignites the injected fuel by means of the spark plug and, together therewith, starts driving of the motor, and after the speed of the internal combustion engine exceeds a predetermined determination threshold value that is greater than a resonance band, performs the firing for a second and succeeding times in sequence.

METHODS AND SYSTEMS FOR ADJUSTING CYLINDER AIR CHARGE

Systems and methods for improving operation of an engine are presented. In one example, a position of a throttle is adjusted along with other actuators to improve engine starting. 1. A method of adjusting cylinder air charge of an engine , comprising:adjusting a fuel injection timing of a cylinder to a stroke of the cylinder that varies as a difference between a desired engine speed and an actual engine speed varies and adjusting an amount of fuel supplied to the cylinder in response to cylinder air charge.2. The method of claim 1 , where the stroke of the cylinder varies from a compression stroke to an intake stroke claim 1 , and where the cylinder air charge is adjusted via a throttle.3. The method of claim 2 , where the throttle is a port throttle.4. The method of claim 3 , further comprising where the port throttle is at least partially closed during fuel injection during a compression stroke.5. The method of claim 3 , further comprising where the port throttle is open during fuel injection during an intake stroke of the cylinder.6. The method of claim 1 , where the fuel injection timing provides at least two fuel injections during a cycle of the cylinder.7. The method of claim 1 , where the fuel injection timing is supplied to a fuel injector that injects fuel directly into the cylinder.814-. (canceled)15. A hybrid vehicle system claim 1 , comprising:an engine;a dual mass flywheel (DMF) including a first side mechanically coupled to the engine;a driveline disconnect clutch including a first side coupled to a second side of the dual mass flywheel;a driveline integrated starter/generator (DISG) including a first side coupled to a second side of the driveline disconnect clutch; anda controller including non-transitory instructions executable to adjust fuel injection timing to a cylinder in response to a desired engine speed that is based on a torque converter impeller speed while a torque converter impeller is not mechanically coupled to the engine.16. The hybrid ...

Informational based engine stop/start sensitivity control for micro-hev

A controller may be configured to adjust a brake apply and release detection calibration based on a detection sensitivity associated with a predicted driver start/stop intention for a vehicle and an associated confidence level indicative of a likelihood of the predicted driver intention; and perform at least one of engine startup and engine shutdown according to the adjusted brake pedal detection calibration.

STARTER MOTOR SYSTEM FOR A VEHICLE

Methods and systems are provided for a starter motor system for cranking an engine. In one example, a starter motor system includes, a battery, two electric motors arranged in series, two main contactors, two auxiliary contactors, and two solenoid contactors. Each of the two electric starter motors may be simultaneously energized to crank the engine in tandem after the pinion gears of both the electric motors are coupled to the ring gear of the engine. 1. An engine starter circuit , comprising:a battery;a first starter motor assembly including a first motor, a first pinion, and a first solenoid with a first pull-in coil and a first hold-in coil, the first pull-in coil arranged in series with the first motor such that current to the first motor is limited when the first pull-in coil is energized;a second starter motor assembly including a second motor, a second pinion, and a second solenoid with a second pull-in coil and a second hold-in coil, the second pull-in coil arranged in series with the second motor such that current to the second motor is limited when the second pull-in coil is energized; the second starter motor assembly arranged in series with the first starter motor assembly;a first main contactor and a second main contactor electrically coupling the battery in series to the first motor and the second motor, respectively;a first auxiliary contactor and a second auxiliary contactor electrically coupling the battery in series to the first pull-in coil and the second pull-in coil, respectively, the first auxiliary contactor arranged parallel to the first main contactor, the second auxiliary contactor arranged parallel to the second main contactor; anda first solenoid contactor and a second solenoid contactor arranged in series to one another and in parallel to the first and the second starter motor assemblies.2. The circuit of claim 1 , wherein the first and second solenoid contactors when closed claim 1 , are electrically coupled to the first and second ...

SYSTEMS AND METHODS FOR AUTOMATIC AIR CONDITIONING RESTART

A vehicle includes an engine, a start-stop system configured to stop and restart operation of the engine in response to predetermined triggers, and an auxiliary air conditioning AC system including a controller communicably coupled to the start-stop system. The start-stop system is configured to provide a first indication to the auxiliary AC system indicating ignition of the engine and a second indication to the auxiliary AC system after stopping the engine. The auxiliary AC system is configured to turn off the auxiliary AC system in response to receiving the first indication and restart the auxiliary AC system in response to receiving the second indication. 1. A vehicle comprising:an engine;a start-stop system configured to stop and restart operation of the engine in response to predetermined triggers; and turn off the auxiliary AC system in response to receiving the first indication; and', 'restart the auxiliary AC system in response to receiving the second indication., 'an auxiliary air conditioning (AC) system including a controller communicably coupled to the start-stop system, wherein the start-stop system is configured to provide a first indication to the auxiliary AC system indicating ignition of the engine and a second indication to the auxiliary AC system after stopping the engine, wherein the auxiliary AC system is configured to2. The vehicle of claim 1 , further comprising an ignition switch configured to complete a starter circuit to start and stop the engine claim 1 , wherein the starter circuit is communicably coupled to the controller such that the controller receives an ignition signal from the starter circuit upon closure of the ignition switch claim 1 , wherein the controller is configured to turn off the auxiliary AC system in response to receiving the ignition signal.3. The vehicle of claim 2 , wherein the controller includes a user-input switch configured to receive user preferences to activate and deactivate the auxiliary AC system claim 2 , ...

Method for predicting a rotational speed of a crankshaft in an internal combustion engine

Method for predicting a rotational speed (n) of a drive shaft ( 16 ) in an internal combustion engine ( 13 ), wherein a past rotational speed (n) of the drive shaft ( 16 ) is determined, characterised in that in order to determine a theoretical rotational speed (nT 1, nT 2 ) of the drive shaft ( 16 ) at a future point in time (tT 1, tT 2 ), the change in the rotational speed (n) between two past events (P 01, P 11; P 02, P 12 ) occurring at different times is used, one rotational speed (n 01, n 11; n 02, n 12 ) and one point in time (t 01, t 11; t 02, t 12 ) being assigned to each event, wherein one point in time (t 01, t 02 ) is an earlier point in time and the other is a later point in time (t 02, t 12 ), which therefore lies before the predicted point in time (tT 1, tT 2 ), wherein a gradient (m) is determined for a period between the two events (P 01, P 11; P 02, P 12 ) and is used as the basis for deducing a theoretical future rotational speed (nT 1, nT 2 ) at the future point in time (tT 1, tT 2 ), such that in order to determine the theoretical rotational speed (nT 1, nT 2 ) of the drive shaft ( 16 ) at the future point in time (tT 1, tT 2 ), the determined gradient (m) is used to determine the theoretical rotational speed (nT 1, nT 2 ) at the future point in time (tT 1, tT 2 ), on the basis of the later point in time (t 02, t 12 ), thus determining whether the theoretical rotational speed (nT 1, nT 2 ) actually occurred before the future point in time (tT 1, tT 2 ) or not until afterwards.

Vehicle, control apparatus and control method

A vehicle comprises: a storage battery configured to store electric power; an internal combustion engine configured to be started with electric power supplied from the storage battery; an electric auxiliary configured to operate with the electric power supplied from the storage battery; and a stop start controller configured to perform a stop control of stopping the internal combustion engine according to a driving condition of the vehicle and a restart control of restarting the internal combustion engine that has been stopped by the stop control. The stop start controller includes: an auxiliary voltage acquirer configured to obtain a measured auxiliary voltage value that denotes a voltage of the electric auxiliary measured on occasion of start of the internal combustion engine; and a feasibility determiner configured to determine whether the stop control is feasible, based on the measured auxiliary voltage value.

Control device

A control device includes an engine starting unit that starts an engine on a condition that a first voltage is supplied, an engine control unit that controls an operation of the engine starting unit, and a transmission control unit that drives a transmission on a condition that a second voltage, which is higher than the first voltage, is supplied. The transmission control unit sends an engine start permission signal to the engine control unit in a case where a voltage of power supplied from a battery is the second voltage or higher, and the engine control unit permits the engine starting unit to start the engine on a condition that the engine control unit receives the engine start permission signal.

Induction motor-permanent magnet generator tandem configuration starter-generator for hybrid vehicles

Disclosed in the present invention is a tandem starter-generator construction that includes an induction motor-generator, a permanent magnet motor-generator and power transmission unit disposed adjacent to the motor-generators. The induction motor-generator is utilized predominantly as a motor to provide mechanical power at relatively high efficiency as a motor, and as a generator to provide electrical power during regenerative braking. The permanent magnet motor-generator is used predominantly as a generator for very high efficiency power conversion and to capture additional electrical power during regenerative braking to compensate for the regenerative energy captured at lower efficiency by the induction motor-generator. Accordingly, the tandem motor-generator construction disclosed herein overcomes the drawbacks of low efficiency of an induction motor-generator operating in regenerative mode and a permanent magnet motor-generator magnetic drag losses during periods of non-utilization at high speeds in order to improve fuel efficiency of a parallel hybrid vehicle.

ENGINE START CONTROL APPARATUS

An engine start control apparatus for a vehicle in which an engine can be automatically stopped temporarily is characterized in that when the position of a piston is within a range that is likely to cause ignition during automatic stop of the engine (Yes in step S), it is predicted that the electric power consumed in a starting device in restarting the engine is small, a second path with a large resistance is selected as an energization path from a battery to a starter motor (step S), and starter start for cranking the engine by the starting device and ignition start based on fuel injection and ignition are executed (step S) to restart the engine. 1. An engine start control apparatus for a vehicle that is equipped with an engine , a battery and a starting device that consumes an electric power of the battery to start the engine , the engine start control apparatus comprising:a changeover device configured to change over an energization path from the battery to an electric motor provided in the starting device, between a first path and a second path, a resistance of the second path being larger than a resistance of the first path;a prediction determination unit configured to:(i) determine whether or not a predetermined prediction condition is fulfilled during automatic stop of the engine, and(ii) predict that an electric power consumed in the starting device in restarting the engine is smaller when the prediction condition is fulfilled than when the prediction condition is not fulfilled;a start request determination unit configured to determine whether or not a start request to start the engine is detected during the automatic stop;a start control unit configured to:(i) execute two kinds of start control out of first start control, second start control and third start control when the start request determination unit determines that the start request is detected and the prediction determination unit determines that the prediction condition is fulfilled, the first ...

Control Apparatus For Electric Rotating Machine

A control apparatus includes a first determination section determining whether a power-supply voltage has decreased below a first threshold value, an interruption section interrupting a current flow to an inverter if the voltage has decreased below the first threshold value, a second determination section that determining whether the power-supply voltage has increased above a second threshold value, an interruption releasing section releasing the interruption based on the fact that the voltage has increased above the second threshold value, a count section counting the number of interruptions, a limiting section determining whether the decrease in the power-supply voltage is caused by a first factor of an electric rotating machine or a second factor, and limits the counting if the decrease in the power-supply voltage is caused by the second factor, and a third determination section determining whether the interruption is allowed to be released based on the number of interruptions.

PROVIDING A BOOST VOLTAGE WITH A TRANSIENT OPERATION

A system, method and circuit for providing a boost voltage with a transient operation of a vehicular start-stop system are provided. The system includes a duty cycle or current monitor to detect a change in duty cycle or current based on the transient operation; a crank time-out detector to determine whether the change in duty cycle is over a predetermined threshold; and a reset generator to generate a reset of a boost circuit that generates the boost voltage after a predetermined delay. 16-. (canceled)7. A circuit for controlling a boost circuit of a start-stop system based on a transient condition , comprising:a digital-to-analog circuit connected to a boost gate drive of the boost circuit, and configured to provide an analog signal of a duty cycle on the boost gate drive;an opamp circuit configured to detect whether the analog signal is above a predetermined threshold;a delay circuit configured to introduce a delay signal based on whether the analog signal is detected to be above the predetermined threshold; anda reset generator configured to control the boost circuit to shut off based on the delay signal from a delay circuit.8. The circuit according to claim 7 , wherein the duty cycle corresponds to a vehicular battery being loaded based on a demand for current.9. The circuit according to claim 7 , wherein the demand for current is based on start-stop system transitioning from a stop mode to a start mode.10. The circuit according to claim 7 , wherein the delay signal is based on a signal strength of the analog signal.11. The circuit according to claim 7 , further comprising a second opamp connected in-between the delay circuit and the reset generator.12. The circuit according to claim 7 , wherein the reset generator comprises a pull-down switch to activate a reset.13. The circuit according to claim 7 , wherein the boost circuit is configured to constantly provide boost voltage during a low voltage state of the battery claim 7 , and the boost circuit is ...

AUTO STOP PARAMETER THRESHOLD ADJUSTMENT

A vehicle controller may initiate an auto stop of an engine in response to a value of an auto stop parameter falling within a specified range and alter the specified range based on learned information derived from vehicle data to change a frequency or duration of auto stops of the engine. 1. A vehicle comprising:an engine; anda controller programmed to initiate an auto stop of the engine in response to a value of an auto stop parameter falling within a specified range and to alter the specified range based on learned information derived from vehicle data to change a frequency or duration of auto stops of the engine.2. The vehicle of claim 1 , wherein the controller is further programmed to alter the specified range in response to the learned information such that the frequency or duration of auto stops of the engine increases for a specified drive cycle.3. The vehicle of claim 1 , wherein the auto stop parameter is vehicle speed and wherein altering the specified range includes increasing a threshold speed at which an auto stop of the engine is initiated.4. The vehicle of claim 1 , wherein the auto stop parameter is rate of accelerator pedal tip-out and wherein altering the specified range includes decreasing a threshold rate of accelerator pedal tip-out at which an auto stop of the engine is initiated.5. The vehicle of claim 1 , wherein the auto stop parameter is quantity of brake apply and wherein altering the specified range includes decreasing a threshold quantity of brake apply at which an auto stop of the engine is initiated.6. The vehicle of claim 1 , wherein the auto stop parameter is rate of brake pedal tip-out and wherein altering the specified range includes decreasing a threshold rate of brake pedal tip-out at which an auto stop of the engine is initiated.7. A vehicle stop-start system comprising:a controller programmed to adjust an auto stop parameter threshold value associated with a particular geographic location according to learned information ...

REMOTE STARTUP SYSTEM AND CENTER SERVER

A remote startup system includes a terminal of a user, a center server that is configured to communicate with the terminal, and a vehicle that is configured to communicate with the center server, and starts up an engine of the vehicle according to a startup request transmitted from the terminal to the center server. The remote startup system includes a position information acquisition unit that acquires position information of the vehicle, a time information acquisition unit that acquires time information, and a controller that changes a performance manner of the startup of the engine based on the startup request including whether the startup of the engine is permitted according to the position information of the vehicle and the time information when the startup request is transmitted from the terminal to the center server. 1. A remote startup system including a terminal of a user , a center server that is configured to communicate with the terminal , and a vehicle that is configured to communicate with the center server , the remote startup system being configured to start up an engine of the vehicle according to a startup request transmitted from the terminal to the center server , the remote startup system comprising:a position information acquisition unit configured to acquire position information of the vehicle;a time information acquisition unit configured to acquire time information; anda controller configured to change a performance manner of the startup of the engine based on the startup request including whether the startup of the engine is permitted according to the position information of the vehicle and the time information when the startup request is transmitted from the terminal to the center server.2. The remote startup system according to claim 1 , further comprising a degree-of-permission determination unit configured to determine a degree of permission of idling of the engine at a time when a position of the vehicle and the startup request are ...

SYSTEM AND METHODS FOR OPERATING AN ENGINE

Systems and methods for operating a vehicle that includes an engine that may be automatically stopped and started are described. In one example, inhibiting of automatic engine stopping and starting may be withdrawn in response to a change in driver vehicle settings or when a temperature of an engine is less than a threshold temperature. 1. An engine operating method , comprising:automatically stopping and starting an engine via a controller;inhibiting the automatic stopping and starting of the engine via the controller in response to a request made via a human/machine interface; andcancelling the request and allowing automatic stopping and starting of the engine via the controller in response to a human driver initiated engine stop and an engine temperature being less than a threshold temperature.2. The method of claim 1 , further comprising automatically stopping and starting the engine via the controller in response to an absence of the request and vehicle operating conditions.3. The method of claim 2 , where the vehicle operating conditions include driver demand torque being less than a threshold.4. The method of claim 1 , further comprising cancelling the request and allowing automatic stopping and starting of the engine in response to a value of a timer exceeding a threshold.5. The method of claim 4 , where the timer counts an amount of time between when a human driver stops the engine and when the human driver starts the engine after the engine was most recently stopped by the human driver.6. The method of claim 4 , further comprising maintaining the request and inhibiting automatic stopping and starting of the engine in response to a value of a timer being less than the threshold.7. The method of claim 1 , where automatically stopping the engine includes ceasing fuel flow to the engine and stopping rotation of the engine.8. The method of claim 1 , where automatically starting the engine includes rotating the engine via an electric machine and supplying fuel ...

Methods and systems for enabling engine start/stop function

Methods and systems are provided for enabling engine start/stop function in a vehicle with a detachable door. In one example, a method may include, adjusting an engine start/stop strategy responsive to a driver side door of the vehicle been detected to be absent. The adjustment to the start/stop strategy further may be modified based on a type of transmission system coupled to the vehicle.

Start controller and start controlling method

A drive control section automatically stops an engine by stopping fuel injection and by closing a throttle valve that adjusts the amount of intake air when a predetermined specified condition is satisfied. A stopping-angle detection section detects a crank angle when the engine is automatically stopped as a stopping angle. The drive control section cranks the engine before an in-cylinder negative pressure period, in which pressure in a cylinder of the engine is negative pressure, elapses after starting to automatically stop the engine if the stopping angle is outside an allowable crank-angle range in which it is possible to restart the engine by cranking the engine by the motor generator.

STARTER SYSTEM AND METHOD OF CONTROL

A starter system includes a brushless electric starter motor and a battery power pack, the motor operatively connectable to an internal combustion engine of a powertrain. A power inverter converts direct current provided from the battery power pack to multi-phase alternating current to drive the motor. A pinion gear with one-way clutch is rotatably driven by the motor and movable between a disengaged position and an engaged position in which the pinion gear is meshingly engaged with a ring gear operatively connected to a crankshaft of the engine. A solenoid is operatively connected to the pinion gear. An electronic control system controls the motor to crank the engine using power provided from the battery power pack, and to separately command the solenoid to a disabled or an enabled state. A method of controlling the starter system controls the motor to crank the engine in a restart following an autostop. 1. A starter system for use with a powertrain having an internal combustion engine with a ring gear operatively connected to a crankshaft of the internal combustion engine , the starter system comprising:a brushless electric starter motor selectively operatively connectable to the internal combustion engine;a battery power pack;a power inverter operable to convert direct current provided from the battery power pack to multi-phase alternating current to drive the brushless electric starter motor;a pinion gear configured to be rotatably driven by the brushless electric starter motor and movable between a disengaged position in which the pinion gear is disengaged from the ring gear, and an engaged position in which the pinion gear is meshingly engaged with the ring gear to transfer torque provided from the brushless electric starter motor to the crankshaft;a solenoid operatively connected to the pinion gear;an electronic control system operable to control the brushless electric starter motor to crank the internal combustion engine using power provided from the battery ...

BUS VOLTAGE STABILIZATION IN POWERTRAIN HAVING ELECTRIC STARTER SYSTEM WITH POLYPHASE BRUSHLESS STARTER MOTOR

An electric starter system is usable with an engine and a power inverter module (PIM), e.g., of a powertrain. The starter system includes a polyphase/AC brushless starter motor connected to the PIM via an AC voltage bus and selectively connected to the engine during a requested engine start event. A sensor on the DC voltage bus outputs a signal indicative of a voltage level of the DC voltage bus. The controller executes a method using voltage stabilization logic having a proportional-integral (PI) torque control loop. Logic execution in response to the requested engine starting event causes the controller to control the starter motor, when the bus voltage exceeds a calibrated minimum voltage, using a starting torque determined via the control loop. The commanded starting torque limits inrush current to the starter motor such that the DC voltage bus remains above the minimum voltage. 1. An electric starter system for use with an internal combustion engine , a direct current (DC) voltage bus , an alternating current (AC) voltage bus , and a power inverter module (PIM) electrically connected to the DC voltage bus and the AC voltage bus , the electric starter system comprising:a polyphase/AC brushless starter motor that is electrically connected to the AC voltage bus, the starter motor being selectively connectable to the engine in response to a requested engine start event;an electrical sensor connected to the DC voltage bus and configured to output a signal indicative of a voltage level of the DC voltage bus; anda controller in communication with the electrical sensor and programmed with voltage stabilization logic, the voltage stabilization logic including a proportional-integral (PI) torque control loop;wherein execution of the voltage stabilization logic in response to the requested engine start event, when the voltage level of the DC voltage bus is less than a calibrated minimum voltage, causes the controller to determine a required starting torque of the starter ...

METHOD FOR STARTING ENGINE FOR HYBRID ELECTRIC VEHICLE

A method for starting an engine for a hybrid electric vehicle that includes a starter connected to the engine by a gear to start the engine and a motor-generator connected to the engine by a belt to start the engine or produce electricity include determining whether a start signal is input, determining whether a predetermined cold start condition is satisfied when it is determined that the start signal is input, starting the engine by use of the starter in a predetermined cold start mode when the cold start condition is satisfied, determining whether a predetermined cooperative control start condition is satisfied when the cold start condition is not satisfied, and starting the engine by use of the starter and the motor-generator in a predetermined cooperative control start mode when the cooperative control start condition is satisfied. 1. A method for starting an engine for a hybrid electric vehicle that includes a starter connected to the engine by a gear to start the engine and a motor-generator connected to the engine by a belt to start the engine or produce electricity , the method comprising:Determining, by a controller, whether a start signal is input;determining, by the controller, whether a predetermined cold start condition is satisfied, when the controller determines that the start signal is input;starting the engine by use of the starter in a predetermined cold start mode when the cold start condition is satisfied;determining, by the controller, whether a predetermined cooperative control start condition is satisfied, when the cold start condition is not satisfied; andstarting the engine by use of the starter and the motor-generator in a predetermined cooperative control start mode, when the cooperative control start condition is satisfied.2. The method of claim 1 , wherein the cold start condition is satisfied when an engine stall time exceeds a predetermined reference stall time or when a current of a battery configured to supply power to the starter ...

CONTROL DEVICE FOR ENGINE AND CONTROL METHOD OF ENGINE

The application discloses a control device and a control method for an engine. The control device includes an electronic control unit configured to execute a stop-and-start control of automatically stopping the engine when a predetermined automatic stop condition is established and automatically restarting the engine when a predetermined automatic-restart condition is established during the automatic stop of the engine, and in a case where the automatic-restart condition is established during fuel cut-off according to the automatic stop of the engine, prohibit detection of the toothless part based on the pulse signal output from the crank angle sensor, for a period until the crankshaft is rotated by a predetermined crank angle or more after the automatic-restart condition is established. 1. A control device for an engine that includes a crank angle sensor and a timing rotor provided on a crankshaft of the engine , the timing rotor being provided with a plurality of teeth and a toothless part where at least one of the teeth is not provided on an outer periphery of the timing rotor , the crank angle sensor being configured to output a pulse signal according to passing of the teeth of the timing rotor ,the control device comprising execute a stop-and-start control of automatically stopping the engine when a predetermined automatic stop condition is established and automatically restarting the engine when a predetermined automatic-restart condition is established during the automatic stop of the engine; and', 'when the automatic-restart condition is established during fuel cut-off according to the automatic stop of the engine, prohibit detection of the toothless part of the timing rotor based on the pulse signal output from the crank angle sensor, for a period until the crankshaft is rotated by a predetermined crank angle or more after the automatic-restart condition is established., 'an electronic control unit configured to2. The control device according to claim 1 , ...

Vehicle and start/stop method for a vehicle engine

A vehicle engine start/stop control method includes shifting an automatic transmission to a park or neutral position and auto-stopping the engine in response the automatic transmission being in the park or neutral position for a predetermined period of time that begins with a shift of the automatic transmission to the park or neutral position.

REUTILIZATION OF REGENERATIVE BRAKING ENERGY FOR DELAYING AN ENGINE START EVENT

System, methods, and other embodiments described herein relate to delaying a start of an internal combustion engine (“ICE”) in a hybrid vehicle. In one embodiment, a method includes identifying a stopping location, a regenerative braking event that assists in stopping the hybrid vehicle at the stopping location, and an actual energy value based on a regenerative braking energy generated during the regenerative braking event. The method includes determining an estimated energy value based on a predicted regenerative braking energy from a predicted braking event causing the hybrid vehicle to stop at the stopping location. The method includes determining an energy savings value based, at least in part, on a difference between the actual energy value and the estimated energy value. The method includes, responsive to the ICE being off, delaying the start of the ICE based, at least in part, on the energy savings. 1. A method for delaying a start of an internal combustion engine (“ICE”) in a hybrid vehicle , comprising:identifying a stopping location for the hybrid vehicle;identifying a regenerative braking event for the hybrid vehicle that assists in stopping the hybrid vehicle at the stopping location;identifying an actual energy value based on a regenerative braking energy generated during the regenerative braking event;determining an estimated energy value based on a predicted regenerative braking energy from a predicted braking event causing the hybrid vehicle to stop at the stopping location, wherein the predicted braking event is based on user braking data;determining an energy savings value based, at least in part, on a difference between the actual energy value and the estimated energy value; andresponsive to the ICE being off, delaying the start of the ICE based, at least in part, on the energy savings value.2. The method of claim 1 , further comprising:determining a cut-off time based on a battery discharge limit, the cut-off time being a maximum amount of time ...

STARTER SYSTEM HAVING CONTROLLING RELAY SWITCH

A starter system including a motor, a solenoid assembly having a solenoid switch, a pinion rotated by the motor and moveable into an engaging position in which an engine may be cranked and the solenoid switch is closed to energize the motor from an electric power source, and relay switch regulated by a controller and closed to apply electrical power to the solenoid assembly for actuating the solenoid switch. The controller repeatedly opens and closes relay switch during a starting operation if sensed motor energization voltage monitored by the controller falls below a predetermined threshold level within a predetermined time period after electrical power is applied to the solenoid assembly, whereby electrical power applications to the solenoid assembly are automatically repeated during a starting operation to correct “click-no-crank” events and prevent prolonged power application to the solenoid assembly. A related method is also disclosed. 120-. (canceled)21. A system for starting an engine , comprising:a relay switch that is closed during a starting operation; a solenoid assembly including a solenoid switch adapted for connection to an electrical power source,', 'a motor connected to the solenoid switch and energized by the electrical power source when the solenoid switch is closed, and', 'a pinion rotatably coupled to the motor and moveable between an engaged position in which the engine may be cranked by the starter assembly and a disengaged position, and wherein the pinion is biased into its disengaged position in the absence of electrical power application to the solenoid assembly; and, 'a starter assembly comprisinga controller connected to the relay switch;wherein during a starting operation, if a sensed system voltage indicative of the engine starting and monitored by the controller rises to a predetermined threshold level, the controller opens the relay switch to switch electrical power to the solenoid assembly off whereby the pinion is automatically moved ...

Method and system for a hybrid power control in a vehicle

Methods and systems for improving fuel economy and reducing emissions of a vehicle with an electric motor, an engine, an energy storage device, and a controller are disclosed. The method includes obtaining current state information including a current hybrid control surface, and determining a target hybrid control surface for the vehicle based on the current state information.

STARTER CONTROLLER FOR STARTER MOTOR

A starter motor controller for a starter motor operatively connected to a single coil solenoid includes a first pair of switches including a first solenoid switch and a second solenoid switch. The first solenoid switch selectively completes a first electrical circuit for delivering a first electrical current to the single coil solenoid and the second solenoid switch selectively completes a second electrical circuit for delivering a second electrical current to the single coil solenoid that is less than the first electrical current. A second pair of switches includes a first starter motor switch and a second starter motor switch. The first starter motor switch selectively completes a first electrical circuit for delivering a first electrical power to the starter motor and the second starter motor switch selectively completes a second electrical circuit for delivering a second electrical power to the starter motor that is greater than the first electrical power. 1. A starter motor controller for a starter motor operatively connected to a single coil solenoid , the starter motor controller comprising:a first pair of switches including a first solenoid switch and a second solenoid switch, the first solenoid switch selectively completing a first electrical circuit for delivering a first electrical current to the single coil solenoid and the second solenoid switch selectively completing a second electrical circuit for delivering a second electrical current to the single coil solenoid that is less than the first electrical current; anda second pair of switches including a first starter motor switch and a second starter motor switch, the first starter motor switch selectively completing a first electrical circuit for delivering a first electrical power to the starter motor and the second starter motor switch selectively completing a second electrical circuit for delivering a second electrical power to the starter motor that is greater than the first electrical power.2. The ...

VEHICLE CONTROL DEVICE

A vehicle control device configured to be capable of executing idle stop control to automatically stop an engine when a predetermined automatic stop condition is satisfied and restart the engine when a predetermined restart condition is satisfied during the automatic stop of the engine, the vehicle control device includes: a start request detector, a shift position detector, and a delay time setting module. A start request detector detects a driver operation indicating a request for starting the engine by a driver. A shift position detector detects a shift position of a shift changer. A delay time setting module sets, on a basis of presence or absence of the driver operation and the shift position, a delay time from when the engine is restarted until when an automatic stop of the engine is permitted. 1. A vehicle control device capable of executing idle stop control to automatically stop an engine when a predetermined automatic stop condition is satisfied and restart the engine when a predetermined restart condition is satisfied during the automatic stop of the engine , the vehicle control device comprising:a start request detector configured to detect a driver operation indicating a request for starting the engine by a driver;a shift position detector configured to detect a shift position of a shift changer; anda delay time setting module configured to set, on a basis of presence or absence of the driver operation and the shift position, a delay time from when the engine is restarted until when an automatic stop of the engine is permitted.2. The vehicle control device according to claim 1 , wherein the delay time setting module varies a length of the delay time according to the shift position when a restart of the engine is not due to the driver operation.3. The vehicle control device according to claim 2 , wherein the delay time setting module sets the delay time to be shorter when the shift position is in a travel range than when the shift position is in a non- ...

Verfahren zum steuern des antriebsstrangs eines kraftfahrzeugs

Wird während einer festgelegten Wartezeit nach einem Öffnen des Antriebsstrangs weder ein Antriebsmoment noch ein Bremsmoment vom Verbrennungsmotor (1) angefordert, so wird nach Ablauf der Wartezeit der Verbrennungsmotor (1) abgeschaltet. Dabei wird die Wartezeit zwischen dem Öffnen des Antriebsstrangs und dem Abschalten des Verbrennungsmotors (1) abhängig von der aktuellen Betriebssituation des Kraftfahrzeugs festgelegt.

Method for determining a rotational speed of a drive shaft of an internal combustion engine

Verfahren zur Bestimmung einer Drehzahl (nX) einer Antriebswelle (13) einer Brennkraftmaschine (10) zu mindestens einem späteren Zeitpunkt (tX), wobei die sich drehende Antriebswelle (13) verschiedene Drehpositionen (PHI11, PHI12; PHI21, PHI22) zu unterschiedlichen Zeitpunkten (t11, t12; t21, t22) einnimmt, wobei aus zumindest zwei Drehpositionen (phi11, phi12; phi21, phi22) ein vergangenes mittleres Drehverhalten (m1; m2; mi) ermittelbar ist und daraus auf eine mittlere Drehzahl (nX) zu mindestens einem späteren Zeitpunkt (tX) geschlossen wird. Method for determining a speed (nX) of a drive shaft (13) of an internal combustion engine (10) at at least one later point in time (tX), wherein the rotating drive shaft (13) has different rotational positions (PHI11, PHI12; PHI21, PHI22) at different times ( t11, t12; t21, t22), with at least two rotational positions (phi11, phi12; phi21, phi22) being able to determine a past mean rotational behavior (m1; m2; mi) and, from this, a mean rotational speed (nX) to at least one later Time (tX) is closed.

Work machine

用于确定内燃机驱动轴转速的方法

本发明涉及一种用于确定内燃机(10)的驱动轴(13)在至少一个以后的时间点(tX)时的转速(nX)的方法，其中，旋转的驱动轴(13)在不同的时间点(t11，t12；t21，t22)时占据不同的旋转位置(PHI11，PHI12；PHI21，PHI22)，其中，可从至少两个旋转位置(phi11，phi12；phi21，phi22)获得过去的平均旋转特性(m1；m2；mi)，并且由此推测出在至少一个以后的时间点(tX)时的平均转速(nX)。

Control device for hybrid vehicle

用于运行机动车的起动器的方法和装置

本发明涉及一种用于运行机动车的起动器（203）的方法，其中，测量一个物理量，其特征在于，根据测得的物理量限制或不限制所述起动器（203）的起动器电流，其中，在限制所述起动器电流的情况下在一个预给定的时间之后结束所述限制。本发明还涉及一种用于运行机动车的起动器的装置（201）和一种控制程序。

内燃机的起动装置

本发明涉及一种允许有两种不同起动方法的内燃机起动装置(1，13)。一种起动方法是脉冲起动，而另一种是直接起动。脉冲起动最好是在发动机冷态时用飞轮质量(5)的能量来完成，而直接起动在发动机热态时进行。按照本发明，届时的最适宜的起动方法根据内燃机(2)的温度来自动选择。

用于预先确定内燃机驱动轴的运动状态的方法

本发明涉及一种以驱动轴(222)的过去运动状态(BZ n 、BZ n-2 )为基础预先确定内燃机(210)驱动轴(222)的运动状态(BZ n+1 )的方法，其中，为此使用与第一过去运动状态(BZ n-2 )对应的特性(t n-2 、ω n-2 )和与第二过去运动状态(BZ n )对应的特性(t n 、ω n )，且驱动轴(222)占据周期性反复的角度位置 其特征在于，借助于评估出的第一过去运动状态(BZ n-2 )和评估出的第二过去运动状态(BZ n )求出驱动轴(222)在角度位置 处的后继运动状态(BZ n+1 )以及与该后继运动状态相对应的特性(t n+1 、 )，其中，求出的驱动轴(222)的后继运动状态(BZ n+1 )的角度位置 与第一和第二过去运动状态(BZ n 、BZ n-2 )的角度位置 不相同。

Engine automatic stop / restart device

하이브리드 드라이브 라인의 연소 엔진 시동 방법

본 발명은 하이브리드 파워트레인의 연소 엔진(4)을 시동하는 방법에 관한 것으로, 하이브리드 파워트레인(3)은, 입력축(8)과 출력축(20)을 구비하는 기어박스; 입력축(8)과 제1 메인축(34)에 연결되어 있는 제1 유성기어(10); 제1 유성기어(10)와 제2 메인축(36)에 연결되어 있는 제2 유성기어(12); 제1 유성기어(10)에 연결되어 있는 제1 전기 기계(14); 제2 유성기어(12)에 연결되어 있는 제2 전기 기계(16); 제1 메인축(34) 및 이에 따라 제1 유성기어(10)와 출력축(20)에 연결되어 있는 적어도 하나의 기어쌍(G1, 60, 72); 제2 메인축(36) 및 이에 따라 제2 유성기어(12)와 출력축(20)에 연결되어 있는 적어도 하나의 기어쌍(G2, 66, 78); 카운터축(18)과 출력축(20)에 연결되어 있는 적어도 하나의 기어쌍(G3, 21)을 포함하고, 연소 엔진(4)은 입력축(8)에 의해 제1 유성기어(10)에 배치되어 있는 제1 유성휠 캐리어(50)에 연결되며, 제2 메인축(36)은 제2 유성기어(12)에 배치되어 있는 유성휠 캐리어(51)에 연결되고, 기어쌍들(G1, 60, 72; G2, 66, 78)은 카운터축(18) 및 기어쌍(G3, 21)을 통해 출력축(20)에 연결된다. 상기 방법은, a) 제1 유성기어(10)의 회전 가능한 부품들(26, 50)을 서로 분리하는 단계, b) 제2 유성기어(12)의 회전 가능한 부품들(32, 51)을 서로 분리하는 단계, c) 제1 유성기어(10)와 출력축(20)에 연결되어 있는 적어도 하나의 기어쌍(G1, 60, 72) 및 제2 유성기어(12)와 출력축(20)에 연결되어 있는 적어도 하나의 기어쌍(G2, 66, 78)의 회전을 방지하는 단계, d) 출력축(20)의 회전을 방지하는 단계, 및 e) 연소 엔진(4)이 시동하도록 제1 전기 기계(14) 및/또는 제2 전기 기계(16)를 구동하는 단계를 포함한다. 또한, 본 발명은 연소 엔진(4)을 시동하기 위한 컴퓨터 프로그램(P) 및 본 발명에 따른 방법을 구현하기 위해 전자 제어 장치(48) 또는 다른 컴퓨터(53)에 대한 프로그램 코드를 포함하는 컴퓨터 프로그램 제품에 관한 것이다.

vehicle

Vehicle control system

Control device in engine for cooling unit

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method and device for predicting the starting capacity of a vehicle

本发明涉及一种用于带有一台内燃机、和一个由汽车蓄电池(1)供给电能的起动器的汽车起动能力预告的装置。所述装置包括一个用于确定汽车蓄电池充电状态的蓄电池状态识别模块；由在停放的汽车中的放电电流变化确定在预先确定的时间段内，从汽车蓄电池中消耗的电量的机构；根据预先确定的时间段计算汽车蓄电池的未来的充电状态的机构；用于确定蓄电池电参数的机构，依赖于蓄电池充电状态的蓄电池电参数的特性曲线族就储存在该装置中，由特性曲线族中可读出在预先确定的时间段之后存在的蓄电池电参数的值；并且所述蓄电池电参数是起动电流；预告机构，它根据读出的蓄电池电参数的值确定，汽车在预先确定的时间段之后是可以起动还是不能起动。因此汽车的起动能力的确定非常简单。

Engine automatic stop / start control device

Method of starting internal combustion engine in hybrid powertrain

FIELD: motor industry.SUBSTANCE: invention relates to a method for starting internal combustion engine (4) in hybrid powertrain (3). Method includes the steps of determining desired torque (T) on output shaft (20), determining torque (T) on output shaft (97) of internal combustion engine (4) required to start internal combustion engine (4) and control first electrical machine (14) and second electrical machine (16) such that desired torque (T) on output shaft (20) and torque (T) required on output shaft (97) of internal combustion engine (4) are achieved.EFFECT: effective and reliable start of the internal combustion engine.9 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 669 086 C2 (51) МПК F02N 11/04 (2006.01) B60K 1/02 (2006.01) B60W 10/06 (2006.01) B60W 10/08 (2006.01) B60W 10/115 (2012.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B60K 6/365 (2018.05); B60K 6/387 (2018.05); B60K 6/44 (2018.05); B60K 6/445 (2018.05); B60K 6/547 (2018.05); B60W 10/06 (2018.05); B60W 10/08 (2018.05); B60W 10/11 (2018.05); B60W 10/111 (2018.05); B60W 20/40 (2018.05); F02N 11/006 (2018.05); F02N 15/022 (2018.05); F02N 15/046 (2018.05); F16H 3/091 (2018.05); F16H 3/727 (2018.05); F16H 37/042 (2018.05) 2016140136, 17.03.2015 (24) Дата начала отсчета срока действия патента: 17.03.2015 08.10.2018 (73) Патентообладатель(и): СКАНИА СВ АБ (SE) Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: DE 19903936 A1, 04.05.2000. RU 20.03.2014 SE 1450318-9 (43) Дата публикации заявки: 20.04.2018 Бюл. № 11 2486066 C1, 27.06.2013. RU 2430844 C2, 10.10.2011. US 20050256629 A1, 17.11.2005. US 20070125083 A1, 07.06.2007. 2 6 6 9 0 8 6 Дата регистрации: (72) Автор(ы): ЛИНДСТРЕМ Йохан (SE), БЬЕРКМАН Матиас (SE), ПЕТТЕРССОН Никлас (SE), БЕРГКВИСТ Микаэль (SE) R U (21)(22) Заявка: (85) Дата начала рассмотрения заявки PCT на национальной фазе: 20.10.2016 C 2 C 2 (45) Опубликовано: 08.10.2018 Бюл. № 28 ...

System for restarting internal combustion engine when engine restart request occurs

本发明提供一种用于当发动机重启请求产生时重启内燃机的系统。在系统中，启动器包括用于可转动地驱动具有小齿轮的输出轴的电动机和将小齿轮朝向环形齿轮移动以与环形齿轮接合的执行器。监测单元监测内燃机的转动速度。在用于发动机停止的自动控制之后，内燃机的转动速度下降。当用于发动机停止的自动控制导致的内燃机的转动速度下降期间，在转动速度处于预置范围的情况下产生发动机重启请求时，驱动单元驱动执行器将小齿轮朝向环形齿轮移动以与环形齿轮接合。驱动单元可转动地驱动具有与环形齿轮接合的小齿轮的电动机，从而摇动曲轴。

Method of starting of engine of internal combustion in hybrid transmission

FIELD: transportation. SUBSTANCE: invention relates to hybrid vehicles. In the method for starting an internal combustion engine in a hybrid power train, the rotating components of the first and second planetary gear are separated from each other; do not allow the rotation of at least one gear pair that is connected to the first planetary gear and the output shaft, and at least one gear pair which is connected to the second planetary gear and the output shaft. Then, the output shaft is not rotated and the first electric machine or the second electric machine is activated such that an internal combustion engine is started. EFFECT: engine is started. 12 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 654 246 C2 (51) МПК B60K 1/02 (2006.01) B60K 6/365 (2007.10) B60K 6/40 (2007.10) B60K 6/445 (2007.10) B60K 6/547 (2007.10) B60W 10/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА B60W 10/08 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ B60W 20/00 (2006.01) F02N 11/04 (2006.01) F16H 3/091 (2006.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК (21)(22) Заявка: 2016140137, 17.03.2015 17.03.2015 Дата регистрации: 17.05.2018 (73) Патентообладатель(и): СКАНИА СВ АБ (SE) Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: US 2012197475 A1, 02.08.2012. DE 20.03.2014 SE 1450310-6 C 2 (45) Опубликовано: 17.05.2018 Бюл. № 14 2 6 5 4 2 4 6 (86) Заявка PCT: (54) СПОСОБ ДЛЯ ЗАПУСКА ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ В ГИБРИДНОЙ ТРАНСМИССИИ (57) Реферат: Изобретение относится к гибридным передачи друг от друга; не допускают вращение транспортным средствам. В способе запуска по меньшей мере одной зубчатой пары, которая двигателя внутреннего сгорания в гибридной соединена с первой планетарной передачей и силовой передаче разъединяют вращающиеся выходным валом, и по меньшей мере одной компоненты первой и второй планетарной зубчатой пары, которая соединена со второй (85) Дата начала рассмотрения заявки PCT на национальной фазе: 20.10.2016 SE 2015/050306 (17.03. ...