Vehicle inclination based battery state of charge target

• Main Authors: Miller Kenneth James, Shen Stephen Li-Chun, Martin Douglas Raymond, Perkins William Paul
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2016
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

The invention relates to vehicle inclination based battery state of a charge target. A hybrid vehicle includes a traction battery, a powertrain coupled to the battery, and a controller or a battery management system having a controller. The controller is programmed to set a state of charge (SOC) target for the battery according to losses associated with the powertrain and an angle of inclination of the vehicle. The controller is programmed to respond to a SOC of the battery and a speed of the vehicle. When the SOC is greater than the target and the speed is greater than a threshold, the controller is programmed to discharge the battery to achieve the target. 本公开涉及种基于车辆倾斜的电池荷电状态的目标。种混合动力车辆包括：牵引电池、连接到牵引电池的动力传动系统和控制器或具有控制器的电池管理系统。控制器被配置为：根据与动力传动系统相关联的损耗以及车辆的倾斜角，来设置牵引电池的荷电状态的目标。控制器被配置为：对牵引电池的荷电状态和车辆的速度做出响应。当牵引电池的荷电状态大于所述目标并且车辆的速度大于阈值时，控制器被配置为：对牵引电池进行放电以实现所述目标。