Braking system for electric motor coach and control method of braking system

Abstract

The invention relates to a braking system for an electric motor coach. A brake pedal signal switch, an accelerator pedal signal switch, a brake master cylinder pressure sensor, a gear sensor, a vehicle speed sensor, a motor revolution speed transducer, a battery management system, a sliding energy recovery control knob and a gas storage tank pressure sensor are in signal connection with a vehicle control unit respectively; the vehicle control unit is in signal connection with a motor controller, a voltage conversion direct current (DC)-alternating current (AC) unit and an anti-locked braking system respectively; and the voltage conversion DC-AC unit is in circuit connection with an electric air compressor which is in gas circuit connection with a braking gas storage tank, the gas storage tank pressure sensor is installed on the braking gas storage tank, and an energy unit circuit is connected with the battery management system. The invention further relates to a control method. The braking system for the electric motor coach is skillful in design, concise in structure, easy to implement, provided with an energy recovery function on the premise that the safety and the stability of the whole braking system are guaranteed, provided with good braking force distribution feature and braking foot feeling and suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of automobile braking systems, in particular to the technical field of electric automobile braking systems, and specifically refers to an electric bus braking system capable of energy recovery and a control method thereof. Background technique [0002] Under the circumstances that environmental issues and energy issues are increasingly concerned, electric vehicles are considered to be ideal substitutes for traditional vehicles due to their own advantages. One of the most prominent advantages of electric vehicles is the ability to recover braking energy, that is, the kinetic energy generated by the vehicle's driving inertia is transmitted to the motor through the transmission system during braking, and the motor works in the form of power generation and charges the battery to achieve braking. energy recycling. In general, it is far from enough for an electric vehicle to rely solely on the motor to provide br...

AI Technical Summary

Problems solved by technology

But for electric city buses, the above technologies are complicated and difficult to realize

[0003] A Chinese utility model patent has announced a braking energy recovery system (Tian Fengbin electric vehicle energy recovery system, authorized patent number ZL200820010686.2, authorized announcement date December 24, 2008), this system is limited to super electric hybrid buses It has the function of braking energy recovery, and it mainly focuses on the protection of electrical appliances during braking energy recovery, without considering the comprehensive protection of the entire braking stability and safety

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