Integrated electronic speed-differentiate and speed-regulation centralized control method and device thereof

A technology of centralized control and electronic differential speed, which is applied in the control drive, electric vehicle, power management, etc., to reduce the wiring burden, reduce the computing burden, and improve the stability.

Active Publication Date: 2013-05-15
江苏中工高端装备研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the driving of electric vehicles is developing towards the integration of the drive motor and the wheels, that is, to realize the direct drive of the wheels. Speed ​​and speed control are exactly the problems to be solved in the present invention

Method used

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  • Integrated electronic speed-differentiate and speed-regulation centralized control method and device thereof

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Experimental program
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Embodiment 1

[0054] An integrated electronic differential speed and speed regulation centralized control method, the control method includes the following steps:

[0055] ① The expected speed processing unit reads the electrical signal output by the accelerator linearly related to the expected speed according to the period Ta, the expected speed processing unit reads the control electrical signals output by the brake pedal and the electronic parking module according to the period Tc, and the expected speed processing unit normalizes The dimensions of the electrical signals output by the accelerator, the brake pedal, and the electronic parking unit are taken as the reference speed Vref after normalization and output to the subtraction module;

[0056] ②The actual speed processing unit calculates the actual processing reference Vact, and the calculation formula is:

[0057] Vact=Vl×μl+Vr×μr (1)

[0058] Among them, Vl is the rotation speed of the left hub motor, Vr is the rotation speed of ...

Embodiment 2

[0067] A device for implementing the method described in Embodiment 1, comprising:

[0068] The expected speed processing unit reads the electrical signal output by the accelerator linearly related to the expected speed according to the period Ta, the expected speed processing unit reads the control electrical signals output by the brake pedal and the electronic parking module according to the period Tc, and the expected speed processing unit normalizes The dimensions of the electrical signals output by the accelerator, the brake pedal, and the electronic parking unit are taken as the reference speed Vref after normalization and output to the subtraction module;

[0069] The actual speed processing unit calculates the actual processing reference Vact and sends it to the subtraction module. The calculation formula is:

[0070] Vact=Vl×μl+Vr×μr (1)

[0071] Among them, Vl is the rotation speed of the left hub motor, Vr is the rotation speed of the right hub motor, μl and μr are...

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Abstract

Provided is an integrated electronic speed-differentiate and speed-regulation centralized control method and a device thereof. The integrated electronic speed-differentiate and speed-regulation centralized control method comprises an expected speed processing unit, an actual speed processing unit, a subtraction module, a PI algorithm module, a speed-differentiate distribution module, a left wheel drive unit and a right wheel drive unit. The integrated electronic speed-differentiate and speed-regulation centralized control method is characterized in that the expected speed processing unit, the actual speed processing unit, the subtraction module and the PI algorithm module can synergistically achieve a speed control function, the PI algorithm module sends a speed control output signal to the speed-differentiate distribution module, and the speed-differentiate distribution module uses an angle signal of a turning sensor to send the control signals of a left wheel driver and a right wheel driver to the left wheel drive unit and the right wheel drive unit. The integrated electronic speed-differentiate and speed-regulation centralized control method further provides the functions of speed-differentiate and speed-regulation, the system integration level and stability of a double-wheel-hub drive system are improved, and the maximum saving of the system and overall optimization are achieved.

Description

technical field [0001] The invention relates to an electronic control technology of a four-wheel electric vehicle, in particular to an electric vehicle drive control method integrating electronic differential speed and speed regulation and constant speed and a special device for realizing the method. Background technique [0002] Most electric vehicles generally adopt a bridge-type drive structure, and the mid-mounted motor is directly connected to the drive axle. The bridge-type drive structure mechanically applies the rotational torque of the mid-mounted motor to the corresponding two wheels, pushing the two wheels forward and backward. Although the differential speed method of the bridge structure is effective, the energy transfer efficiency is reduced due to the mechanical device, and the dead weight of the electric vehicle is increased at the same time. On the other hand, double-hub or multi-hub electric vehicles need an additional electronic device to adjust the speed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/32B60L15/20
CPCY02T10/72
Inventor 不公告发明人
Owner 江苏中工高端装备研究院有限公司
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