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Vacuum booster assembly

A vacuum booster and assembly technology, applied in brakes, electric braking systems, electric vehicles, etc., can solve problems such as short cruising range, influence on the promotion of electric vehicles, and heavy battery costs, so as to improve the contribution rate of cruising range and reduce the cost of braking. The effect of kinetic energy expenditure

Inactive Publication Date: 2021-05-07
DONGFENG LIUZHOU MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Electric vehicles have short mileage, heavy batteries and high cost. These pain points seriously affect the promotion of electric vehicles

Method used

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  • Vacuum booster assembly
  • Vacuum booster assembly
  • Vacuum booster assembly

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Embodiment Construction

[0023] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", "connection" and "communication" should be understood in a broad sense, for example, it can be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

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Abstract

The invention discloses a vacuum booster assembly which comprises a vacuum booster and a brake master cylinder connected with the vacuum booster. The vacuum booster is provided with an output force ejector rod, a vacuum shell and a boosting push rod which is inserted into the vacuum shell in a sliding manner; the vacuum booster is provided with a spring seat and a spring piece which are used for simulating brake pedal force, one end of the spring piece abuts against the vacuum shell, the other end of the spring piece is fixed to the spring seat, the spring piece is clamped between the vacuum shell and the spring seat, and the spring seat is fixed to the boosting push rod. The piston of the brake master cylinder is located in the vacuum cavity of the vacuum booster and located on the moving path of the output force ejector rod, and a gap is formed between the piston of the brake master cylinder and the vacuum booster. The invention further discloses an automobile braking energy recovery system, feedback torque of an engine can be fully utilized, and high braking energy recovery is supported, and the cruising ability of the automobile is improved. The invention belongs to the technical field of engines.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a vacuum booster assembly. Background technique [0002] Electric vehicles have short cruising range, heavy batteries and high cost. These pain points seriously affect the promotion of electric vehicles. Energy consumption in urban areas is relatively high, and braking energy recovery is an important energy-saving measure for electric vehicles. Compared with traditional fuel vehicles, electric vehicles have added components such as batteries and motors. When the vehicle decelerates, the motor is in a state of power generation, brakes the vehicle, and recovers the braking energy to a rechargeable energy storage system (such as a battery) or For on-board accessory work. When braking, the brake friction torque and the motor feedback torque superimpose on the wheels to decelerate the vehicle. Since the traditional hydraulic brake circuit has a small invalid clearance, in order to e...

Claims

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Application Information

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IPC IPC(8): B60T13/52B60T11/16B60L7/02
CPCB60T13/52B60T11/16B60L7/02
Inventor 陈江深陈锐杨继业李伟伟梁宝梯覃权中覃健罗斯宇蓝伟谢莹莹陈裴龙文张德军钟永普
Owner DONGFENG LIUZHOU MOTOR