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ABS system and energy recovery matched brake control method

An ABS system, energy recovery technology, applied in the direction of brakes, electric braking systems, electric vehicles, etc., can solve the problem of not considering the braking energy recovery rate, etc., to improve the braking energy recovery rate, improve the braking reliability, The effect of reducing overheating and wear problems

Inactive Publication Date: 2020-08-25
汉腾新能源汽车科技有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] However, none of the prior art considers the use of pulse current in the braking energy recovery process to increase the braking energy recovery rate more safely

Method used

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Embodiment Construction

[0019] The present invention provides a braking control method in which the ABS system cooperates with energy recovery, and the braking control method can be based on one of the existing braking systems in which the ABS system cooperates with energy recovery, as long as it can achieve the purpose of the present invention That's it.

[0020] Now take one of the braking systems with ABS system and energy recovery as an example, the braking system includes brake pedal, ABS auxiliary braking system, power battery, battery management system, drive motor, motor controller, energy recovery system , brake pedal sensor and vehicle controller. Among them, the vehicle controller can communicate with the battery management system to obtain the storage capacity of the power battery, and the vehicle controller can also communicate with the motor controller to control the motor braking torque of the driving motor, and the energy recovery system can be controlled by the vehicle The controlle...

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Abstract

The invention provides an ABS system and energy recovery matched brake control method. The method comprises the following steps: 1) acquiring a depth of a brake pedal by a vehicle control unit, and calculating to obtain a brake torque demand T0; 2) making the vehicle control unit communicate with a battery management system to obtain maximum rechargeable power of a continuous current and the maximum rechargeable power of a pulse current; 3) making the vehicle control unit communicate with the motor controller to obtain a motor braking torque T1 of a maximum continuous energy recovery current and a motor braking torque T2 of a maximum pulse energy recovery current; and 4) using the vehicle control unit to determine a braking energy recovery mode according to a wheel locking torque T, a braking torque demand T0, the motor braking torque T1 of the maximum continuous energy recovery current and the motor braking torque T2 of the maximum pulse energy recovery current. In the invention, thebraking energy recovery is carried out in a manner of synchronizing with a braking torque change waveform sent by the ABS auxiliary braking system so that a braking energy recovery rate can be improved to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of automobile braking, in particular to a braking control method in which an ABS system cooperates with energy recovery. Background technique [0002] Due to the pressure of energy and environmental protection, new energy vehicles have been greatly developed in recent years, and various new technologies supporting new energy vehicles have also attracted the attention of the industry. [0003] At present, the development of new energy vehicles is basically inseparable from power battery energy storage devices and drive motors. Among them, the power battery energy storage device is mainly affected by the energy density and cost of the power battery, so the cruising range of electric vehicles is generally not satisfactory; the drive motor can also be used as a generator, which can convert the kinetic energy of the vehicle into The electric energy is stored in the on-board energy storage system, which not only ...

Claims

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Application Information

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IPC IPC(8): B60L7/10B60L7/18B60T8/176B60W30/18
CPCB60L7/10B60L7/18B60T8/176B60W30/18109B60W30/18127Y02T90/16
Inventor 王世强宁予潘世林李世明阎全忠
Owner 汉腾新能源汽车科技有限公司
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