The invention provides an accelerometer system, a vehicle-mounted control system and a vehicle-mounted safety control method, and relates to the technical field of vehicle control. The method comprises the steps: an acceleration sensor converts a collected analog acceleration signal into a digital acceleration signal; the digital end of an ADC receives the digital acceleration signal; a thresholdjudgment circuit acquires the digital vehicle speed signal and performs data selection according to a pre-configured vehicle speed threshold value and the digital vehicle speed signal to determine whether to output the digital acceleration signal or not; and the threshold judgment circuit is further connected with the digital end of the DAC, and the analog end of the DAC is further connected withvehicle-mounted safety equipment, so that the DAC performs digital-to-analog conversion on the digital acceleration signal output by the threshold judgment circuit and then outputs the signal to the vehicle-mounted safety equipment. By acquiring the digital vehicle speed signal and using the digital vehicle speed signal to control the output opportunity of the digital acceleration signal, the problem that the existing vehicle-mounted safety equipment is unnecessary to open is solved, and the control precision of the vehicle-mounted safety equipment is improved.
本申请提供的一种加速计系统、车载控制系统及车载安全控制方法,涉及车辆控制技术领域。包括:加速度传感器对采集到的模拟加速度信号转换为数字加速度信号;ADC的数字端接收数字加速度信号;阈值判断电路获取数字车速信号,并根据预先配置的车速阈值和数字车速信号,进行数据选择,以确定是否输出数字加速度信号;阈值判断电路还连接DAC的数字端,DAC的模拟端还连接车载安全设备,以使得DAC对阈值判断电路输出的数字加速度信号进行数模转换后,输出至车载安全设备。通过获取数字车速信号,并利用数字车速信号控制数字加速度信号的输出时机,解决了目前车载安全设备不必要打开的问题,提高了对于车载安全设备的控制精度。
Accelerometer system, vehicle-mounted control system and vehicle-mounted safety control method
一种加速计系统、车载控制系统及车载安全控制方法
2020-12-18
Patent
Elektronische Ressource
Chinesisch
IPC: | G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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