Transmission controller for electric vehicle automatic transmission

The present invention generally relates to automatic transmission controllers and related methods. In one case, the present invention provides a method of calibrating a controller to match an automatic transmission to an electric motor or internal combustion engine. The controller is not integrated into the transmission. The method comprises adjusting parameters of the controller and includes the steps of: a) Defining the Control Architecture; b) using the Defined Control Architecture to Identify Control Loop Input/Output; c) using the Identified Control Input/Output to Define the Control Algorithm Controller; d) using the Control Algorithm Controller definition to either Define the Shift Schedule or Define the Solenoid Handler, either of which can be used in Optimizing Calibration Via Testing. 1. A method of calibrating a controller to match an automatic transmission to an electric motor or internal combustion engine , wherein the controller is not integrated into the transmission , and wherein the method comprises adjusting parameters of the controller , and wherein the method comprises the steps of: a) Defining the Control Architecture; b) using the Defined Control Architecture to Identify Control Loop Input/Output; c) using the Identified Control Input/Output to Define the Control Algorithm Controller; d) using the Control Algorithm Controller definition to either Define the Shift Schedule or Define the Solenoid Handler , either of which can be used in Optimizing Calibration Via Testing.2. The method of claim 1 , wherein the Defined Shift Schedule receives further input in the form of Electric Motor Efficiency Curves claim 1 , and wherein the Defined Solenoid Handler receives further input from Identification of Transmission Controls Requirements.3. The method of claim 2 , wherein Identification of Transmission Controls Requirements is used to select the Transmission Controller Specifications claim 2 , and wherein the Transmission Controller Specifications are ...

Time tracking in a non-negligible multipath spacing environment

In an antenna diversity environment, the timing offset of the receiver's fingers are based on the timing offset of the received peaks of the base station transmit signals. In a system with non-negligible multipath spacing, the timing offset of the received peaks of the base station transmit signals are not necessarily at the same location. In one embodiment, the demodulating elements for the signal from each base station antenna use the same offset for demodulating and determining an error signal based on pilot signal sampling prior to the timing offset and subsequent to the timing offset. The error signals are averaged and used by a time tracking loop to track the incoming signal. In another embodiment, the demodulating elements for the signal from each base station antenna independently time track the signals with different timing offsets for each finger. The preferred embodiment depends on the method used by the base station to multiplex the data onto multiple transmit antennas.

Time tracking in a non-negligible multipath spacing environment

In an antenna diversity environment, the timing offset of the receiver's fingers are based on the timing offset of the received peaks of the base station transmit signals. In a system with non-negligible multipath spacing, the timing offset of the received peaks of the base station transmit signals are not necessarily at the same location. In one embodiment, the demodulating elements for the signal from each base station antenna use the same offset for demodulating and determining an error signal based on pilot signal sampling prior to the timing offset and subsequent to the timing offset. The error signals are averaged and used by a time tracking loop to track the incoming signal. In another embodiment, the demodulating elements for the signal from each base station antenna independently time track the signals with different timing offsets for each finger. The preferred embodiment depends on the method used by the base station to multiplex the data onto multiple transmit antennas.

Time tracking in a non-negligible multipath spacing environment

In an antenna diverstiy environment, the timing offset of the receiver's fingers are based on the timing offset of the received peaks of the base station transmit signals. In a system with non-neglible multipath spacing, t he timing offset of the received peaks of the base station transmit signals are not necessarily at the same location. In one embodiment, the demodulating elements for the signal from each base station antenna use the same offset f or demodulating and determining an error signal based on pilot signal sampling prior to the timing offset and subsequent to the timing offset. The error signals are averaged and used by a time trackin loop to track the incoming signal. In another embodiment, the demodulating elements for the signal from each base station antenna independently time track the signals with differen t times offsets for each finger. The preferred embodiment depends on the metho d used by the base station to multiplex the data onto multiple transmit antenn as.

Interference suppression with virtural antennas

A receiver suppresses co-channel interference (CCI) from other transmitters and intersymbol interference (ISI) due to channel distortion using 'virtual' antennas. The virtual antennas may be formed by (1) oversampling a received signal for each actual antenna at the receiver and/or (1) decomposing a sequence of complex-valued samples into a sequence of inphase samples and a sequence of quadrature samples. In one design, the receiver includes a pre-processor, an interference suppressor, and an equalizer. The pre-processor processes received samples for at least one actual antenna and generates at least two sequences of input samples for each actual antenna. The interference suppressor suppresses co-channel interference in the input sample sequences and provides at least one sequence of CCI-suppressed samples. The equalizer performs detection on the CCI-suppressed sample sequence(s) and provides detected bits. The interference suppressor and equalizer may be operated for one or multiple iterations.

Multi-carrier receiver for wireless communication

Method and apparatus for processing a communication signal

Skalierung und Begrenzung von digitalen Empfangssignalen in Abhängigkeit des Modulationsformats oder des Träger/Interferenz Verhältnisses

Skalierung und begrenzung von digitalen empfangssignalen in abhängigkeit des modulationsformats oder des träger/interferenz verhältnisses

Scaling and clipping of a digital received signal according to the modulation format of the measured c/ i

A receiver is configured to determine a scaling factor and a carrier-to-interference cap for a communication signal based on the modulation format used or a measured carrier-to-interference ratio. The carrier-to-interference cap sets the limit for clipping of the signal to interference-plus-noise ratio of the communication signal.