Method and device for monitoring engagement process of engaging pinion of starter motor

1.   used for used for a vehicle drive device for the engagement of the starter motor is meshed with the pinion gear method for monitoring the process, wherein the magnets of the electric motor of the starter armature movement, the method has the following steps:

-In to the magnet of the electromagnetic coils are energized, the detection (103) electromagnetic coil signal, for obtaining a signal profile, in particular the current profile;

-By using a time-frequency-conversion to the signal profile of the transform for generating (105) a frequency profile;

-The frequency profile with at least one reference frequency is compared to the distribution map (107); and

-In the comparison (107) to the stated on the basis of monitoring the meshing process (109).

2. previous claim   according to the method, wherein in the engagement process to carry out the monitoring (109) detecting, whether the engagement process can be successfully implemented.

3. the claim   according to any one of the method, wherein in the generating (105) the frequency profile using the following transformation in the at least one conversion:

-Discrete Fourier transform, , in particular a fast Fourier transform, FFT;

-short-time Fourier transform, STFT;

-Wavelet transform.

4. the claim   according to any one of the method, wherein the comparison (107) include, in particular on the basis of the variance in the frequency profile with said at least one reference frequency distribution is obtained between the error value.

5. the claim   according to any one of the method, wherein the comparison (107) comprises making the frequency profile with said at least one reference frequency profile related.

6. the claim   according to any one of the method, wherein the comparison (107) for the number of 1st to the corresponding allocated to a successful implementation of the process of the engagement of the profile and the reference frequency of the corresponding 2nd to the number allocated to a time of not successful implementation of the meshing process of the profile of the reference frequency.

7.   in the method of claim, wherein, for the engagement control (109) comprises for the following this reference frequency distribution a of: the frequency profile relative to the reference frequency having a minimum the deviation of the profile.

8.   according to the aforesaid claim any one of the method, wherein in generating the signal profile (105) before the frequency profile subjected to sampling rate conversion.

9. the claim   according to any one of the method, wherein in the generating (105) before the frequency profile of the signal profile in the pre-given number of sampling values.

10. in the claims   according to the aforesaid right to any one of the method, wherein the generation of the frequency distribution (105) is substituted with the observation of the signal profile, for obtaining observation profile, and wherein said frequency distribution profile is replaced by the observation distribution, and the frequency profile with at least one reference frequency profile comparison (107) is the observation profile with at least one comparison of a reference frequency is replaced by the distribution map.

11. according to Claim 10   according to the method, wherein the states the observation profile of the signal profile through the Kalman filter or through the mechanical kinematics of the real-time model and/or electric to obtain in the use of a parameter.

12. for a vehicle   used for the driving device for the engagement of the starter motor is meshed with the pinion gear to the process of monitoring device (607), wherein the starter motor through the magnet of the motion of the armature, the device comprises a sensor (609) and a processor (611),

Wherein the sensor (609) is provided for: the magnet in the electromagnetic coils are energized, the detecting electromagnetic coil signal, for obtaining a signal profile, in particular the current profile;

And wherein the processor (611) is provided for:

-Time-frequency-conversion by the signal profile of the transform to produce a frequency profile;

-The frequency profile with at least one reference frequency is compared to the distribution map; and

-In the comparison to the stated on the basis of monitoring the meshing process.

13.   for the driving device for a vehicle, the engagement of the starter motor is meshed with the pinion gear to the process of monitoring device, wherein the starter through the magnet the armature movement of the electric motor, the device including a sensor (609) and a processor (611),

Wherein the sensor (609) is provided for: the magnet in the electromagnetic coils are energized, the detecting electromagnetic coil signal, used to obtain a signal profile, in particular the current profile;

And wherein the processor (611) is provided for:

-Through the observation of the signal profile to generate observation profile;

-The observation profile with at least one reference frequency is compared to the distribution map; and

-In the comparison to the stated on the basis of monitoring the meshing process.

14. according to Claim 13   according to the device, wherein the profile of the signal through the Kalman filter or through the mechanical kinematics of the real-time model and/or electric in the use of a parameter of the observation distribution map to obtain.