1/4 vehicle braking simulation and performance experimental test system and method
A technology for vehicle braking and testing methods, which is applied in vehicle testing, machine/structural component testing, measuring devices, etc., can solve problems such as inability to accurately simulate road braking, and achieve accurate simulation of road braking conditions and easy debugging. , the effect of avoiding losses
Active Publication Date: 2020-01-17
HEFEI UNIV OF TECH
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Problems solved by technology
[0004] In order to solve the problem that the above-mentioned prior art cannot accurately simulate road braking, the present invention provides a 1 / 4 vehicle braking simulation and performance experiment testing system to achieve the purpose of accurately simulating road braking
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[0027] Such as figure 1 As shown, the 1 / 4 vehicle braking simulation and performance experiment testing system of the present invention, the main body is a vehicle braking detection test bench with real-time adjustable adhesion coefficient, mainly composed of a motor 1, a roller group, a torque controller 3, a flywheel 4 and 1 / 4 of the vehicle suspension 5; the motor 1 is connected with the roller group through the first conveyor belt 7A; the roller is connected with one end of the torque sensor 8 through a shaft coupling, and the other end of the torque sensor 8 is connected with the output end of the torque controller 3 Connect, the torque sensor 8 is used for the calibration of the parameters of the torque controller 3 before the test and the measurement of the output torque of the torque controller 3 in the test process; the input end of the torque controller 3 is connected with the flywheel 4 through the third conveyor belt 7C 1 / 4 vehicle suspension 5 is fixed on the drum...
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The invention discloses a 1 / 4 vehicle braking simulation and performance experiment testing system and method. The system comprises a motor, a roller set, a torque controller, a flywheel, a 1 / 4 vehicle suspension and a signal collecting and processing system, rotating speed of rollers simulates wheel speed, rotating speed of the flywheel simulates vehicle speed, and rotational inertia of the flywheel simulates 1 / 4 vehicle translation inertia; the signal collecting and processing system collects and processes collected rotating speed data of the rollers and the flywheel and output torque of thetorque controller; the output torque of the torque controller is controlled correspondingly according to output information of the signal collecting and processing system so as to simulate changes ofroad surface braking force to achieve the objective of adjusting adhesion coefficient. Road surface braking is simulated by utilizing the roller set and the torque controller, data collection and processing and system control are realized on the basis of stress between wheels and a road surface during vehicle braking, and the problem that existing vehicle braking performance experiment testing systems are unitary in adhesion coefficient and low in simulation accuracy is solved.
Description
technical field [0001] The invention relates to a vehicle brake test and simulation system, more specifically a 1 / 4 vehicle brake simulation and performance test system. Background technique [0002] The performance of the automobile braking system plays an extremely important role in the driving safety of the automobile. Testing and evaluating the performance of the automobile braking system is a topic worthy of research. At present, the brake-by-wire system is one of the key components in the smart car / autonomous vehicle technology that has attracted widespread attention around the world. Its detection and evaluation technology has become an key to development. At present, in order to completely evaluate the performance of vehicle brakes, it must be carried out by road testing. This testing method requires a special testing site, high construction and maintenance costs, high risk, long testing period, and is susceptible to environmental and road conditions. Therefore, it...
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IPC IPC(8): G01M17/007
CPCG01M17/0072
Inventor 白先旭李洋廖增成洪先乾
Owner HEFEI UNIV OF TECH