Non-EBS platform new energy commercial vehicle composite braking strategy

A compound braking and new energy technology, which is applied in electric braking systems, electric vehicles, vehicle components, etc., to achieve the effects of reducing usage, reducing electric braking force, reducing wear and heat loss

Pending Publication Date: 2021-05-25
NANJING GOLDEN DRAGON BUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a composite braking strategy for non-EBS platform new energy commercial vehicles in order to solve the problems existing in the above-mentioned prior art. When the ABS is triggered during the process, the sudden withdrawal of the braking force will have a non-linear impact on the vehicle's braking, which can significantly improve the driver's braking control experience and greatly improve the braking stability of the new energy bus during the power recovery braking process sex and security

Method used

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  • Non-EBS platform new energy commercial vehicle composite braking strategy
  • Non-EBS platform new energy commercial vehicle composite braking strategy
  • Non-EBS platform new energy commercial vehicle composite braking strategy

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Please refer to figure 1 As shown, the braking system required in the non-EBS platform new energy commercial vehicle composite braking strategy of the present invention includes a brake pedal, a VCU (vehicle controller), a motor, an MCU (motor controller), an air brake system and ABS anti-lock braking system. The stroke size information of the brake pedal is collected by the VCU through the hard line, and the information such as the speed, torque, and temperature of the motor is collected by the MCU through the hard line. The MCU is also responsible for converting the DC energy of the battery into three-phase AC power to drive the motor. During the electric braking process, the motor is allowed to output negative torque, and the AC energy recovered by the motor is converted into DC energy to charge the battery. MCU and VCU are connected by CAN line, MCU transm...

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Abstract

The invention discloses a non-EBS platform new energy commercial vehicle composite braking strategy, which is realized based on a braking system, the braking system comprises a brake pedal, a VCU (vehicle control unit), a motor, an MCU (motor controller), a pneumatic braking system and an ABS (anti-lock braking system), the electric braking control strategy provided by the invention comprehensively considers that the wheel speed of the vehicle is not matched, namely, the control method in the working state of the ABS system. In general, motor braking energy feedback is reserved, the vehicle energy utilization rate is increased, use of vehicle traveling braking is reduced, and abrasion and heat loss of a vehicle brake are reduced; and the activation of an anti-lock braking system is considered, so that the electric braking force of the vehicle is reasonably reduced, and the braking stability and safety of the whole vehicle are improved.

Description

Technical field: [0001] The invention relates to a non-EBS platform new energy commercial vehicle composite braking strategy, which belongs to the technical field of new energy vehicles. Background technique: [0002] New energy vehicles save fuel energy, have low noise, high thermal efficiency, and low pollutant emissions, which have become the future development trend of automobiles and are increasingly valued. The braking system of new energy vehicles includes mechanical braking and regenerative braking. The regenerative braking function is one of the biggest differences between new energy electric vehicles and traditional internal combustion engine vehicles. The mechanical braking of new energy commercial vehicles generally adopts the traditional air braking system. During the braking process, the braking energy is completely converted into heat and lost, and the wear and tear on the mechanical parts is relatively large, resulting in poor braking performance and requirin...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B60L7/26B60L7/18
CPCB60L7/26B60L7/18
Inventor冯燕田伟顾红星白志刚
OwnerNANJING GOLDEN DRAGON BUS