The invention provides a vehicle speed control method and device, a vehicle and a storage medium. When the vehicle runs in the cruise control mode, road gradient information of a road section in front of the vehicle is obtained. When the road slope information indicates that the road section is a slope road, the rotating speed and torque of an engine of the vehicle at different vehicle speeds are determined, the first vehicle speed when the vehicle runs with the minimum fuel consumption is found based on the engine universal characteristic curve corresponding to the vehicle, and the vehicle speed of the vehicle is controlled to be the first vehicle speed. According to the scheme, the road gradient information of the road section in front of the driving vehicle is considered, and when the road section is a slope road, the vehicle driving is not controlled at a constant speed any more, but the vehicle speed corresponding to the minimum fuel consumption is switched in advance. In this way, the economical efficiency of the vehicle when the vehicle runs on the road section can be guaranteed, and the situation that when the vehicle runs at the constant speed, high-load operation of an engine and fuel consumption increase occur on the uphill road section or the vehicle speed is too high on the downhill road section, and then discomfort is brought to a user can be avoided.
本申请提供控制车速的方法、装置、车辆及存储介质。在车辆以定速巡航模式行驶时,获取车辆行驶前方的路段的道路坡度信息。在道路坡度信息指示路段为坡路时,确定车辆在不同车速下发动机的转速和扭矩,并基于该车辆对应的发动机万有特性曲线,寻找该车辆以最小燃油消耗量行驶时的第一车速,将车辆的车速控制为第一车速。即该方案考虑车辆行驶前方的路段的道路坡度信息,在路段是坡路时,不再以定速控制车辆行驶,而是提前切换为最小燃油消耗量时对应的车速。这样能够保证车辆在路段上行驶时的时经济性,还能够避免以定速行驶时在上坡路段出现发动机高负荷运转和油耗增加,或在下坡路段出现车速过高进而给用户带来不适感的情况。
Vehicle speed control method and device, vehicle and storage medium
控制车速的方法、装置、车辆及存储介质
2024-01-23
Patent
Elektronische Ressource
Chinesisch
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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