Vacuum brake boosting control system and vacuum brake boosting control method for electric cars

A control system and vacuum boosting technology, applied in the field of brake control, can solve problems such as sensor failure, air leakage, motor failure, etc., to achieve the effect of convenient real-time monitoring, easy braking, and improved safety.

Inactive Publication Date: 2013-04-17
SHENZHEN GREENWHEEL ELECTRIC VEHICLE CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

The traditional electric vehicle vacuum brake booster system is composed of a pressure switch, a vacuum pump controller and a vacuum pump. This system has no real-time control and related fault diagnosis functions, such as: air leakage, motor failure, sensor failu

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  • Vacuum brake boosting control system and vacuum brake boosting control method for electric cars
  • Vacuum brake boosting control system and vacuum brake boosting control method for electric cars
  • Vacuum brake boosting control system and vacuum brake boosting control method for electric cars

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Embodiment Construction

[0030] refer to Figure 1-Figure 3 As shown, the present invention provides a vacuum brake booster control system 100 for electric vehicles, including a brake device 1, a vacuum device 2 and a brake vacuum booster controller 3 connected thereto, wherein the brake device 1 includes sequentially connected brake pedals 11. Booster master cylinder assembly 12, brake oil circuit 13 and oil storage tank 14. The vacuum pumping device 2 includes a connected vacuum pump 20 and a vacuum air storage tank 21. The vacuum air storage tank 21 is connected to the booster master cylinder The assembly 12 is connected, and the vacuum air storage tank 21 is provided with a pressure sensor 210, and the pressure sensor 210 is connected with the brake vacuum booster controller 3, so as to send the air pressure value measured in the vacuum air storage tank 21 to the brake vacuum booster Controller 3, when the measured air pressure value is less than the lower limit of the set air pressure, the brake ...

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Abstract

The invention provides a vacuum brake boosting control system and a vacuum brake boosting control method for electric cars. The vacuum brake boosting control system comprises a brake device, a vacuumizing device and a vacuum brake boosting controller connected with the vacuumizing device. The brake device comprises a brake pedal, a booster cylinder assembly, a brake oilway and an oil storage tank which are sequentially connected. The vacuumizing device comprises a vacuum pump and a vacuum gas storage tank which are connected, and the vacuum gas storage tank is connected with the booster cylinder assembly and provided with a pressure sensor which is connected with the vacuum brake boosting controller so as to transmit gas pressure value measured in the vacuum gas storage tank to the vacuum brake boosting controller. When the measured gas pressure value is lower than the lower limit set gas pressure value, the vacuum brake boosting controller transmits vacuumizing control commands and drives a vacuumizing pump to vacuumize the vacuum gas storage tank.

Description

technical field [0001] The invention relates to brake control technology, in particular to a vacuum brake booster control system and control method for an electric vehicle. Background technique [0002] With the increasing awareness of environmental protection, traditional fuel vehicles are gradually being replaced by new electric vehicles. The traditional electric vehicle vacuum brake booster system is composed of a pressure switch, a vacuum pump controller and a vacuum pump. This system has no real-time control and related fault diagnosis functions, such as: air leakage, motor failure, sensor failure and other failures, causing the car to stop during the journey. The driver cannot monitor the situation of the vacuum brake control system in real time, and unfavorable things occur, which is not conducive to the development and promotion of electric vehicles. So in order to achieve this goal, we have developed a new type of vacuum brake booster control system for electric ve...

Claims

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Application Information

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IPC IPC(8): B60T13/72B60T17/22
Inventor 不公告发明人
Owner SHENZHEN GREENWHEEL ELECTRIC VEHICLE CO LTD
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