The invention relates to a braking method of a loaded vehicle and the loaded vehicle, and belongs to the technical field of electric braking of pure electric and hybrid electric vehicles. According to the scheme, when a vehicle is in a parking and driving state and the electricity storage quantity of a power battery is larger than a first set value, electric energy in the power battery is consumed through a braking resistor; in the driving state, when the electricity storage quantity of the power battery is larger than a value larger than a first set value, the retarder is started; and when the vehicle is in a sliding and braking state and the electricity storage quantity of the power battery is larger than a second set value, at least all feedback electric energy is consumed through the braking resistor. According to the invention, the storage capacity of the power battery is controlled by using the brake resistor and the retarder, so that the situation that the power battery is fully charged to cause the weakening of electric braking cannot occur subsequently under any working condition of parking, driving, braking and sliding of the vehicle; the situation that follow-up driving is possibly affected due to the fact that the braking electric energy recovery amount of the vehicle is large under the driving conditions of long downhill, continuous downhill and the like is avoided, and the safety is improved.
本发明涉及一种重车的制动方法及重车,属于纯电动和混合动力汽车电制动技术领域。方案包括,当车辆处于停车、驱动状态下,且动力电池的储电量大于第一设定值时,通过制动电阻消耗动力电池中的电能;在驱动状态下,还在当动力电池的储电量大于比第一设定值更大的值时开启缓速器;当车辆处于滑行、制动状态下,且动力电池的储电量大于第二设定值时,通过制动电阻至少消耗全部回馈电能。本发明利用制动电阻和缓速器控制动力电池的储电量,使得车辆在停车、驱动、制动、滑行任一工况下,都不会在后续出现动力电池满电导致电制动减弱的情况,避免了车辆在长下坡、连续下坡等行驶状况下制动电能回收大、后续行车可能会受到影响的情况,提高了安全性。
Braking method of heavy vehicle and heavy vehicle
一种重车的制动方法及重车
2024-10-29
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |