Energy-feedback active control type air braking system

A technology of active control and pneumatic braking, which is applied in the direction of hydraulic brake transmission, brake, brake transmission, etc., can solve the problems of insufficient braking energy recovery, affecting braking performance, and inability to control separately, so as to achieve transformation The effect of low cost and difficulty of realization, ensuring braking stability and reducing braking hazards

Inactive Publication Date: 2012-10-24
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the pneumatic braking power of most electric vehicles is uncontrollable, so the regenerative braking adopts a parallel regenerative braking control strategy. When braking, only the driving wheel is equipped with a motor braking force, and the ratio of the front and rear wheel pneumatic braking powe

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  • Energy-feedback active control type air braking system
  • Energy-feedback active control type air braking system

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Embodiment 1

[0032] Such as figure 1 As shown, an energy feedback active control air brake system of this embodiment includes three modules: a high-pressure air pressure generating module 44, an air pressure active control module 45, and an ABS module 46.

[0033] The high-pressure gas generating module 44 is used to generate high-pressure gas for the entire vehicle under a certain pressure, and the certain pressure refers to a pressure range between 0.7 MPa and 1.1 MPa. The high-pressure gas generating module 44 includes an air compressor 1, an air storage tank 2, a four-circuit protection valve 4, an air bag cylinder 3, a parking tank 7, a front axle air tank 8, and a rear axle air tank 9. The air compressor 1 is connected to the input port of the air storage tank 2, the output port of the air storage tank 2 is connected to the input port of the four-circuit protection valve 4, and the output port of the four-circuit protection valve 4 is connected to the air bag cylinder 3 and the parking t...

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Abstract

The invention provides an energy-feedback active control type air braking system, relates to an air braking system of electric automobile energy feedback and belonging to the field of electric automobiles. The energy-feedback active control type air braking system comprises a high-air-pressure generation module, an active air pressure control module and an ABS (Anti-skid Brake System) module, wherein the high-air-pressure generation module is used for generating high-pressure air for the whole automobile under certain pressure; and the active air pressure control module comprises a pedal displacement sensor, a brake pedal, a brake valve, a brake controller, a front-axle double-control proportional relay valve and a rear-axle double-control proportional relay valve. The energy-feedback active control type air braking system is capable of realizing ideal distribution of a braking force and maximization of the rate of energy recovery. The energy-feedback active control type air braking system employs the double-control proportional relay valves to realize active real-time accurate distribution of the braking forces of a front axle and a rear axle, the braking motor of a driving shaft motor and the mechanical braking force; and simultaneously, the energy-feedback active control type air braking system is capable of guaranteeing braking security by starting the conventional braking manner when the electric control part of the double-control proportional relay valves becomes invalid. Furthermore, the energy-feedback active control type air braking system provided by the invention is applied to electric vehicles having the air braking system.

Description

Technical field [0001] The invention relates to a pneumatic braking system for electric vehicle energy feedback, in particular to a pneumatic braking system for electric commercial vehicles, and belongs to the field of electric vehicles. The application object of the present invention is an electric vehicle with a pneumatic braking system. Background technique [0002] As an important means of alleviating energy shortage and environmental pollution, electric vehicles have received more and more attention, and the short driving range has always been the bottleneck of the development of electric vehicles. Electric commercial vehicles (electric buses, electric sanitation vehicles, electric sprinklers) under urban driving conditions, due to traffic congestion, low vehicle speeds, and frequent repeated start / stops, most of the traction energy is caused by friction during braking. The heat generated is consumed in the form. If this part of energy is effectively recovered through ener...

Claims

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Application Information

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IPC IPC(8): B60T11/10B60T11/18B60T13/74B60T13/68
Inventor 王军乔军奎齐志权黄健吕惠
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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