The invention discloses a method and device for determining the torque capacity of an engine and a vehicle. The method comprises the steps that the current charge state of a battery on a vehicle and the allowable power of the battery are obtained; based on the charge state and the battery allowable power, the first power capacity of an engine on the vehicle is obtained, and the first power capacity is used for representing the maximum power of the engine during current normal operation; the current torque capacity of the engine is determined on the basis of the first power capacity and the external characteristic torque capacity of the engine, the external characteristic torque capacity is used for representing the maximum torque, obtained by conducting external characteristic testing on the engine, of the engine during normal operation, and the current torque capacity is used for representing the maximum torque of the engine during current normal operation. The technical problem that the accuracy of determining the torque capacity of the engine is low in the prior art is solved.
本发明公开了一种发动机扭矩能力的确定方法、装置和车辆。其中,该方法包括:获取车辆上电池当前的荷电状态和电池许用功率;基于荷电状态和电池许用功率,获取车辆上发动机的第一功率能力,其中,第一功率能力用于表征发动机当前正常运行时的最大功率;基于第一功率能力和发动机的外特性扭矩能力,确定发动机的当前扭矩能力,其中,外特性扭矩能力用于表征对发动机进行外特性测试所得到的发动机正常运行时的最大扭矩,当前扭矩能力用于表征发动机当前正常运行时的最大扭矩。本发明解决了相关技术中确定发动机扭矩能力的准确度低的技术问题。
Method and device for determining torque capacity of engine and vehicle
发动机扭矩能力的确定方法、装置和车辆
2023-09-19
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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