The invention provides an auxiliary braking control method and system for a commercial vehicle and the vehicle, and belongs to the field of commercial vehicle electronic control. Calculating a negative torque request value corresponding to the brake pedal travel electric signal based on a table look-up calculation mode; according to the calculated negative torque value distributed to the hydraulic retarder, the braking force distributed to an engine braking system with an electric control supercharger deflation valve and an electronic throttle valve is calculated; if the maximum braking force of the engine is smaller than the braking force distributed to the engine braking system, a gear shifting request is sent to an automatic transmission gearbox, and a driver is reminded to conduct gear shifting operation; the engine braking system controls an electric control supercharger deflation valve and an electronic throttle valve to achieve distributed braking force, and the hydraulic retarder executes the distributed braking force.
本发明提供一种用于商用车的辅助制动控制方法、系统及车辆,属于商用车汽车电子控制领域,获取制动踏板行程电信号、车速以及车重信息;基于查表的计算方式计算出制动踏板行程电信号对应的负扭矩请求值;将计算出的分配给液力缓速器的负扭矩值,再计算出分配给带电控增压器放气阀和电子节流阀的发动机制动系统的制动力;如果最大发动机制动力小于分配给发动机制动系统的制动力时,向自动挡变速箱发送换挡请求,提醒驾驶员进行换挡操作;发动机制动系统控制电控增压器放气阀和电子节气门实现分配的制动力,液力缓速器执行分配的制动力。
Auxiliary braking control method and system for commercial vehicle and vehicle
一种用于商用车的辅助制动控制方法、系统及车辆
2023-03-31
Patent
Electronic Resource
Chinese
IPC: | 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 |
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