Automotive brake-by-wire device provided with flexible redundancy mechanism
A brake-by-wire and redundant technology, which is applied to mechanical brake transmission devices, brake transmission devices, brakes, etc., can solve problems such as difficult maintenance, high cost, and large system volume, and achieve light braking and high reliability Effect
Inactive Publication Date: 2016-08-10
JILIN UNIV
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Problems solved by technology
Method 1 uses two or more sets of electronic devices such as backup power supply, dual motors, dual ECUs, and dual sensors, which cannot fundamentally solve the safety hazards caused by the failure of the electronic system itself, and the entire system is large in size, complex in control, and high in cost. , difficult to maintain, etc.; method 2 generally adds an electric brake actuator to the original hydraulic brake system, and uses the hydraulic brake system as a backup. The space layout is still the same as that of the hydraulic brake system, which cannot reflect the flexible layout of the wire control system. characteristics, and the hydraulic redundancy itself also has potential failures of oil leakage
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[0025] according to Figure 1 ~ Figure 4 Preferred embodiments of the present invention will be described.
[0026] figure 1 Represent the whole structure exploded schematic diagram of the present invention. The electronic pedal 10 with the pedal feeling simulator and sensors is fixed on the appropriate position of the metal body in the cab of the car, and its rotating shaft is connected with the actuating wheel 1 with a key. The actuating wheel 1 has a protective cover 11 and is installed on the body of the electronic pedal 10 through bolts. Above; the intermediate transmission mechanism 2 is installed in the housing 9 through bearings, and the housing 9 selects an appropriate position to be fixed on the metal body of the automobile according to the space conditions of the automobile chassis; the two-way controllable clutch mechanisms 3 and 4 are respectively installed on the non-steering Between the two transmission pairs of the wheel brake transmission system, the transmi...
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The invention discloses an automotive brake-by-wire device provided with a flexible redundancy mechanism. The automotive brake-by-wire device comprises a brake input part, a brake output part, a brake control part and a flexible transmission part, wherein the flexible transmission part comprises an actuating wheel, an intermediate transmission mechanism and two bidirectional controllable clutch mechanisms, a redundancy brake assisting mode can be realized when a brake-by-wire system is in a failure state, and the braking maneuver convenience is kept to the greatest extent; the device can be switched to flexible transmission under extreme conditions such as system power failure and the like, a pedal brake mode is realized, dependence on electric power and hydraulic pressure is avoided, and the safety is guaranteed fundamentally.
Description
technical field [0001] The invention relates to a brake-by-wire device, in particular to an automobile brake-by-wire device capable of realizing multi-mode flexible redundancy. Background technique [0002] Brake-by-wire (BBW) integrates electronic parking brake (EPB), electronic stability control (ESP), electronic brake force distribution (EBD), electronic brake assist (EBA), anti-lock brake (ABS), automatic Emergency braking (AEB) and other braking-related technologies are integrated. Compared with the traditional hydraulic braking system, it has the advantages of fast response and adjustable pedal force, which greatly improves the braking portability and handling stability. And active safety, representing the development direction of automobile safety and intelligence. [0003] But the ensuing problem is how to ensure the reliability of the system itself, that is, how to ensure that the driver realizes braking control through the brake pedal when the electromechanical sy...
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Login to View More IPC IPC(8): B60T11/04B60T13/74
CPCB60T11/046B60T13/74B60T2270/82
Inventor 李贵远宗长富麦莉何磊郑宏宇陈国迎王慧文
Owner JILIN UNIV