Real automobile testing system for controlling automotive active anti-rollover

Abstract

The invention discloses a real automobile testing system for controlling automotive active anti-rollover. The testing system comprises a real-time platform, sensors, an active steering actuating mechanism, an active hydraulic braking actuating mechanism and an active anti-rollover controller, wherein the active anti-rollover controller comprises a micro controller unit (MCU), a power supply circuit, a clock circuit, a reset circuit, an electrical isolation pulse shaping circuit, six first filtering circuits, six second filtering circuits, a shaping and filtering operational circuit, a first power driving circuit, a second power driving circuit, a third power driving circuit, a fourth power driving circuit and a controller area network (CAN) transmitting and receiving module; the MCU is electrically connected with each circuit; the clock circuit is electrically connected with a pin XTAL32, a pin EXTAL32, a pin EXTAL and a pin XTAL of the MCU; the electrical isolation pulse shaping circuit is electrically connected with a pin MDA11, a pin MDA12, a pin MDA13 and a pin MDA14 of the MCU; and the CAN transmitting and receiving module is electrically connected with a pin A-CNRX0 and a pin A-CNTX0 of the MCU.

Description

technical field [0001] The invention relates to a test system belonging to the technical field of automobiles, more specifically, the invention relates to a real vehicle test system for active anti-rollover control of automobiles. Background technique [0002] With the improvement of automobile performance, the average driving speed of automobiles is also getting higher and higher, and the traffic accidents produced thereupon are also more and more frequent. And in all traffic accidents because the loss that vehicle rollover causes is particularly serious. Therefore, it has become a research hotspot to prevent vehicle rollover by providing accurate early warning of vehicle rollover and applying active control to reduce rollover accidents. At present, the anti-rollover technologies adopted and being researched at home and abroad mainly include methods based on active suspension, semi-active suspension, four-wheel steering, active braking and active lateral stabilizer. Howev...

AI Technical Summary

Problems solved by technology

However, using a certain system alone will have certain limitations, and the ideal control effect cannot be achieved: the active braking technology is to improve the anti-rollover ability of the vehicle by controlling the braking force of the front and rear wheels of the vehicle, and it needs to control 4 wheels, so the control The method is relatively difficult to realize; the active steering angle input generated by the active steering technology is opposite to the steering wheel angle applied by the driver, which changes the vehicle's driving trajectory according to the driver's intention, which is not suitable for application in emergency avoidance conditions; active suspension Slow technical response and poor real-time control

However, if these active control systems are simply combined and installed, certain coupling and interference will occur. At the same time, the effective working areas of each system are not the same, and it is difficult to achieve the ideal anti-rollover control effect.

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