An FSAC racing active braking system based on manned and unmanned driving modes
An active braking and driverless technology, applied in the field of racing braking system, can solve the problems of not conforming to the lightweight design concept of the vehicle, delaying the driver and vehicle, and low control accuracy, so as to solve the problem of reducing the weight of the car and improving the lightweight. The effect of horizontal, high switching frequency
Active Publication Date: 2021-11-19
JILIN UNIV
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Problems solved by technology
The existing solution is to use a small servo motor to pull (push) the original brake pedal through a mechanical reduction transmission mechanism. The structure of this kind of solution takes up a lot of space, and it is difficult to arrange it in the narrow space of the Formula Student racing car, which does not meet the lightweight design of the vehicle. concept, but also prone to mechanical interference, low control accuracy, prone to delays and potential safety hazards for drivers and vehicles
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[0030] see figure 1 Shown:
[0031] A FSAC race car active braking system based on manned and unmanned driving modes according to the present invention includes a first active braking master cylinder 1, a second active braking master cylinder 2, a linear motor 3, a first passive braking Master cylinder 4, second passive brake master cylinder 5, first two-position three-way solenoid valve 6, second two-position three-way solenoid valve 7, unmanned driving control system 8;
[0032] The first active braking master cylinder 1, the second active braking master cylinder 2 and the linear motor 3 are arranged at the lower part of the front cabin housing, and the first active braking master cylinder 1 and the second active braking master cylinder 2 are arranged side by side on a straight line. On both sides of the motor 3, the telescopic rod of the linear motor 3 is connected with the piston rods of the first active braking master cylinder 1 and the second active braking master cylin...
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The present invention proposes a FSAC racing active braking system based on manned and unmanned driving modes, including a first active braking cylinder, a second active braking cylinder, a linear motor, a first passive braking cylinder, a second passive braking Moving cylinder, first two-position three-way solenoid valve, second two-position three-way solenoid valve, unmanned driving control system; compared with the existing servo motor + mechanical transmission mechanism, the present invention uses a control circuit to precisely control The linear motor moves to realize the service braking function of the unmanned driving mode. Through the switching of different driving modes, the manned driving mode and unmanned driving mode are independent of each other, and the active and passive modes are both designed with dual circuits to ensure safety. The innovation lies in the application of MOSFET metal-oxide semiconductor field effect transistors, which are dozens of times smaller than relays, with high switching frequency, fast response speed, no noise, low energy consumption, no physical contacts, and no electromagnetic interference, so as to solve the problem of space The finite problem and the problem of vehicle lightweighting.
Description
technical field [0001] The invention relates to a braking system for racing cars, in particular to an active braking system for FSAC racing cars based on manned and unmanned driving modes applied to driverless formula racing cars. Background technique [0002] The Formula China College Student Driverless (FSAC) Racing Contest is an automobile design and manufacturing competition organized by students from colleges and universities majoring in automotive engineering or automotive related majors. According to the competition rules and racing car manufacturing standards, each participating team will design and manufacture a small single-seater car with excellent performance in autonomous driving system (AS), acceleration, braking, handling, etc. within one year. Recreational racing, a race that successfully completes all or part of an event segment. The China College Student Driverless Formula Competition is divided into static and dynamic competitions, and dynamic competition...
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IPC IPC(8): B60T8/17B60T8/174B60T13/68
CPCB60T8/1701B60T8/174B60T13/686
Inventor 朱冰孙一赵健刘梓琪崔浩楠
Owner JILIN UNIV