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Control method of double-source auxiliary braking control system for hybrid electric bus

A technology for auxiliary braking and control systems, applied in electric braking systems, hybrid vehicles, motor vehicles, etc., can solve problems affecting driving safety, etc., achieve good reliability, improve safety and reliability, and simple structure Effect

Inactive Publication Date: 2017-05-10
ANHUI ANKAI AUTOMOBILE
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the brake system works for a long time, it will produce thermal decay, which will affect driving safety

Method used

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  • Control method of double-source auxiliary braking control system for hybrid electric bus

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing:

[0016] Such as figure 1 A control method for a dual-source auxiliary braking control system for a hybrid electric bus is shown, the control system includes an inverter 1, a retarder controller 2, a power battery 3, an auxiliary braking device 4, and a brake pedal 5 , a vehicle speed sensor 6, a vehicle controller 7 and a storage battery 8. The auxiliary braking device 4 includes a motor 41 and a retarder 42 . The vehicle controller 7 is interactively connected with the inverter 1, the retarder controller 2 and the power battery 3 at its input and output terminals, and its input terminal is connected with the output terminals of the brake pedal 5 and the vehicle speed sensor 6 respectively. . The DC side of the inverter 1 is connected to the positive and negative poles of the power battery 3 , and the AC side is connected to the motor 41 . The DC side of the retarder con...

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Abstract

The invention relates to a control method of a double-source auxiliary braking control system for a hybrid electric bus. The control system comprises an inverter, a retarder controller, a power battery, an auxiliary braking device, a braking pedal, a vehicle speed sensor, a complete vehicle controller and a storage battery. The auxiliary braking device comprises a motor and a retarder; the input end and the output end of the vehicle controller are connected with the inverter, the retarder controller and the power battery in an interaction mode, and the input end of the complete vehicle controller is connected with the braking pedal and the output end of the vehicle speed sensor separately; the direct current side of the inverter is connected with the positive electrode and the negative electrode of the power battery, and the indirect current side of the inverter is connected with the motor; the direct current side of the retarder controller is connected with the positive electrode of the storage battery, and the signal output end of the retarder controller is connected with the retarder. Accordingly, the heat fading phenomenon caused by long-time working of service braking after motor auxiliary braking exits can be avoided, the braking safety problem of the hybrid electric bus is fundamentally solved, and the safety and the reliability of the complete vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of hybrid electric passenger cars, in particular to a control method for a dual-source auxiliary braking control system for hybrid electric passenger cars. Background technique [0002] At present, the auxiliary braking of hybrid electric buses all adopts electric motor braking, which converts the braking energy into electric energy to charge the battery. Because the battery capacity of hybrid electric buses is generally small, if the vehicle runs on a long-distance downhill road like a mountainous area, the motor brakes for a long time, and the generated electric energy exceeds the capacity of the battery. After the battery is fully charged, the inverter will no longer recover energy. At this time, the motor loses the auxiliary braking effect, and the whole vehicle can only rely on the service brake to decelerate. After the brake system works for a long time, it will produce thermal decay, which will affec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/16B60L11/18B60W20/00B60W10/08B60W10/196
CPCB60L7/16B60L58/10B60L2210/30B60W10/08B60W10/196B60W20/00B60Y2200/11B60Y2200/92Y02T10/70Y02T10/72
Inventor 黄新朱鹤王少凯葛飞王冉李静何晨
Owner ANHUI ANKAI AUTOMOBILE
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