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Commercial vehicle electrical auxiliary braking system and method

An auxiliary braking, commercial vehicle technology, applied in engine control, machine/engine, mechanical equipment, etc., can solve the problem of no retarding mechanism scheme description, etc., to ensure running stability and driving safety, improve stability, The effect of increasing degrees of freedom

Inactive Publication Date: 2017-09-29
HIGER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Regarding the electrified retarder of large commercial vehicles, although there are related patents, there is no detailed description of the retarder scheme

Method used

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  • Commercial vehicle electrical auxiliary braking system and method
  • Commercial vehicle electrical auxiliary braking system and method

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Embodiment Construction

[0033] Such as figure 1 As shown, the commercial vehicle electric auxiliary braking system disclosed in the present invention, as an auxiliary device of the vehicle engine braking system, includes a motor and its controller, a braking resistor, and an energy storage device; Switches K1 and K2 connect the braking resistor and the energy storage element of the energy storage device.

[0034] Add a bypass to the vehicle's engine cooling system so that the engine coolant flows through the braking resistor. An electronically controlled three-way valve is connected to the coolant water pipe connected to the braking resistor. Interface 1 of the electronically controlled three-way valve is connected to the water channel of the engine through the engine radiator, and interface 3 is connected to the brake through an electric water pump. Resistor, interface 2 is directly connected to the braking resistor, and the other end of the braking resistor is connected to the water channel of the...

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Abstract

The invention discloses a commercial vehicle electrical auxiliary braking system and method. The auxiliary braking system comprises a motor, a controller of the motor, a braking resistor and a storage device; electric energy generated by the motor in the feedback braking process is used for charging the storage device through the controller or consumed through the braking resistor. According to the commercial vehicle electrical auxiliary braking system, when a vehicle goes up and down on a slope, different auxiliary braking schemes are selected according to different vehicle speeds, the braking efficiency stability is effectively improved, and the operating stability and driving safety of the vehicle are guaranteed. Accordingly, layout of a braking resistor cooling device is optimized, a bypass is additionally arranged on a motor cooling system, the degree of freedom of the system is improved, under the low-speed downhill working condition, when the motor is not needed for braking, the motor stops, braking is assisted only through the motor, and the energy-saving purpose is achieved to a certain extent.

Description

technical field [0001] The invention relates to commercial vehicles, in particular to an electric power auxiliary braking system for large and medium-sized commercial vehicles, so as to solve the problem of reducing the operating frequency of the service braking system when the vehicle is driving down a long slope section, effectively improving the stability of the braking performance, and ensuring the stability of the vehicle. Safe to run. Background technique [0002] As modern cars run faster and faster, the braking load of the car is also increasing, especially on city buses that stop frequently, when driving in mountainous areas and when going up and down long slopes, the brake load is too large The problem is more prominent. If these braking loads are all borne by the service braking system, it will cause the brake (disc) drum and brake lining to overheat, resulting in a decrease in braking efficiency, or even a complete disappearance of braking ability; And the serv...

Claims

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Application Information

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IPC IPC(8): B60L7/22F02D29/02
CPCB60L7/22F02D29/02
Inventor 杜卫彬胡廷辉熊金峰张卫林
Owner HIGER