A hydraulic power-assisted braking system
A technology of braking system and hydraulic power assist, applied in the field of hydraulic power-assisted braking system and hydraulic power-assisted braking system of electric vehicles, can solve problems such as difficulty in replenishing fluid, achieve convenient and flexible control, ensure braking safety, and flexible structure. Effect
Inactive Publication Date: 2017-09-29
JILIN UNIV
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AI Technical Summary
Problems solved by technology
In the case of failure, since the front chamber of the master cylinder is not directly connected to the oil cup, it will be difficult to replenish fluid during braking
Method used
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Embodiment Construction
[0052] The present invention is described in detail below in conjunction with accompanying drawing:
[0053] The hydraulic power-assisted braking system provided by the present invention includes an electronic control unit 1, a motor 2, a roller screw mechanism 3, a booster cylinder 4, a rotation angle sensor 5, an oil cup 6, a three-chamber brake master cylinder 7, and a sensory simulation spring 72 , Cylindrical plate 73 with holes, brake pedal 8, push rod 9 etc. The brake pedal 8 is rigidly connected with the push rod 9, and the push rod 9 is inserted into the first cavity 85 of the three-chamber brake master cylinder through the through hole of the master cylinder end cover 74, and the push rod 9 and the cylindrical plate 73 with holes Tightly connected, there are two openings on both sides of the cylindrical plate 73 with holes, which are used to keep the same oil pressure on both sides of the plate, so that the push rod can move normally. There is a feeling simulation s...
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The invention belongs to the technical field of automobile power-assisted braking, and relates to a hydraulic power-assisted braking system; Pedal and push rod; the electronic control unit is connected with the motor; the motor is connected with the roller screw mechanism; the roller screw mechanism is rigidly connected with the piston of the booster cylinder in the booster cylinder; the booster cylinder is connected with the three-chamber brake master cylinder through the oil circuit The booster cylinder is connected to the oil cup through the oil circuit; the brake pedal is rigidly connected with the push rod; the push rod is inserted into the three-chamber brake master cylinder; the three-chamber brake master cylinder includes the first chamber of the three-chamber brake master cylinder 1, the second cavity and the third cavity; the invention converts the rotational motion of the motor into the translational motion of the piston, which can also play a human role when the motor fails; the compression spring is used to simulate the feeling of the pedal, which can give the driver Good pedal feeling is provided; the present invention can be freely arranged on the whole vehicle and has a flexible structure.
Description
technical field [0001] The invention belongs to the technical field of automobile power-assisted braking, and relates to a hydraulic power-assisted braking system, in particular to a hydraulic power-assisted braking system suitable for electric vehicles. Background technique [0002] With the increasingly serious world environmental problems and energy crisis, countries around the world are encouraging research and development units to develop various types of new energy vehicles to deal with more and more complex environmental and energy issues. New energy vehicles mainly include gas vehicles, fuel cell electric vehicles, pure electric vehicles, liquefied petroleum gas vehicles, hydrogen energy vehicles, hybrid vehicles, solar vehicles and other new energy vehicles. Its waste gas emission is relatively low, it uses renewable energy, is clean and environmentally friendly, and integrates advanced vehicle technology, advanced design technology, and novel structure automobiles,...
Claims
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IPC IPC(8): B60T13/12B60T13/66
CPCB60T13/745
Inventor 邓伟文杨顺潜磊刘海贞吴坚
Owner JILIN UNIV