The invention discloses a constant-speed cruise in-loop test calibration module which comprises the following steps: a constant-speed cruise expected acceleration calculation unit specifies different acceleration change rate limits in different scenes according to actual vehicle speed calculated by setting cruise vehicle speed and four-wheel speed, and calculates to obtain expected acceleration of a vehicle for building a road environment model; the ramp compensation calculation unit performs feedback correction according to the difference between the speed calculated by the vehicle acceleration sensor and the actual estimated speed of the vehicle, and obtains a ramp resistance acceleration estimated value after filtering; the driving and braking control quantity request unit calculates engine control torque, makes a driving control decision and a braking control decision, outputs a driving torque request and a vehicle engine control torque value according to the driving control decision, and outputs a braking request and a vehicle braking control deceleration value according to the braking control decision; the vehicle model unit pre-stores a specified vehicle model required by a test; the road environment model unit is used for building a road environment model.
本发明公开了一种定速巡航在环测试标定模块,包括:定速巡航期望加速度计算单元根据设置巡航车速和四轮轮速计算的实际车辆速度,在不同场景下指定不同的加速度变化率限制,计算得到本车的搭建道路环境模型期望加速度;坡道补偿计算单元根据车辆加速度传感器计算速度与车辆实际估算速度作差进行反馈校正,经滤波后得到坡道阻力加速度估计值;驱动制动控制量请求单元计算发动机控制扭矩,做出驱动控制决策和制动控制决策,根据驱动控制决策输出驱动扭矩请求和车辆发动机控制扭矩值,根据制动控制决策输出制动请求和车辆制动控制减速度值;车辆模型单元预存测试需要的指定车辆模型;道路环境模型单元用于搭建道路环境模型。
Constant-speed cruise in-loop test calibration module and function test calibration system
定速巡航在环测试标定模块及功能测试标定系统
2023-07-04
Patent
Electronic Resource
Chinese
IPC: | G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
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