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Integrated electric power braking system with novel coupling manner

A coupling method and electric power assist technology, which is applied in the direction of brakes, brake transmissions, transportation and packaging, etc., can solve the problems of low integration, difficult control, low recovery and utilization rate of regenerative braking energy, etc., to ensure safety performance and reliability, and the effect of improving cruising range

Active Publication Date: 2019-04-16
JILIN UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] The present invention provides an integrated electric power-assisted braking system with a new coupling mode in order to solve the problems of the current braking system, such as complex structure, difficult control, low degree of integration, and low recycling rate of regenerative braking energy.

Method used

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  • Integrated electric power braking system with novel coupling manner
  • Integrated electric power braking system with novel coupling manner
  • Integrated electric power braking system with novel coupling manner

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Embodiment Construction

[0076] see Figure 1 to Figure 9 Shown:

[0077] The present invention includes housing 1, hollow motor 2, brake master cylinder 3, manpower piston 4, booster piston 5, booster piston push rod 6, ball screw sub-screw 7, ball screw sub-nut 8, brake pedal push rod 9. Hydraulic control unit HCU10, electronic control unit ECU11, and pedal stroke sensor 12; wherein, the hollow motor 2 and the brake master cylinder 3 are respectively arranged at the rear of the housing 1, and the hollow motor 2 and the brake master cylinder 3 are coaxially arranged The master cylinder working chamber 13 at the front part of the brake master cylinder 3 is provided with a manpower piston 4 and a booster piston 5, and the booster piston 5 is provided with a through hole inside, and the manpower piston 4 is located in the through hole of the booster piston 5, and is connected with the booster piston 5 A clearance fit is formed to build pressure in the working chamber 13 of the master cylinder;

[0078...

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Abstract

The invention relates to an integrated electric power braking system with a novel coupling manner. The system comprises a hull, a hollow motor, a braking main cylinder, a manual piston, a power piston, a power piston push rod, a ball screw secondary screw rod, a ball screw secondary nut, a braking pedal push rod, a hydraulic control unit (HCU), an electric control unit (ECU), and a pedal travel sensor. The system aims at solving the problems of complicated structure, high controlling difficulty, low integration level, low recovery utilization rate of regeneration braking energy and the like ofa current braking system. A novel hydraulic coupling manner is adopted, a reaction disc structure is canceled, so that the control algorithm of the whole braking system is simplified to make controlling convenient. When pedal decoupling needs to be conducted by regeneration braking intervention, pedal force compensation can be achieved through a mechanical structure, the additional arrangement ofa pedal feeling simulator is not needed, and therefore a systematic structure is more compact.

Description

technical field [0001] The invention relates to a braking system, in particular to an integrated electric power-assisted braking system with a new coupling mode. Background technique [0002] With the continuous development of automobile electrification and intelligent technology, higher requirements are put forward for the automobile braking system. Braking realizes braking energy recovery and improves the driving range of electric vehicles; at the same time, it must have sufficient active braking capability to achieve faster response speed and more precise brake pressure control, and it must be the underlying actuator of the intelligent driving assistance system Ability. However, due to the difficulty of meeting these requirements, the traditional vacuum power-assisted braking system has gradually decreased in application, and the application of electric power-assisted braking system has gradually increased. [0003] Through reasonable structural design, the electric pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74
CPCB60T13/745
Inventor 赵健宋东鉴朱冰赵文博王春迪雷鹏
Owner JILIN UNIV
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