Hybrid vehicle torque control method

• Main Authors: LIU JUJIANG, LIAN XUETONG, QIAO YANJU, HE YU
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2017
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; VEHICLES IN GENERAL

The invention provides a hybrid vehicle torque control method comprising the following steps; 1, a vehicle control unit VCU calculates a vehicle total demanding torque and a BSG torque according to an accelerator pedal aperture and a vehicle state; 2, an engine manage system EMS calculates an engine torque according to the vehicle total demanding torque and BSG torque; 3, the engine torque and the BSG torque are summed so as to serve as the drive torque that drives the vehicle. The hybrid vehicle torque control method considers and calculates the BSG torque in the engine end, so the torque precision requirements can be relatively lowered, thus effectively solving a series of driving problems caused by unsatisfactory torque precision; the hybrid vehicle torque control method can be easily matched with the vehicle, and good in robustness and economic efficiency. 本发明提供种混合动力汽车的扭矩控制方法，包括：步骤S1，整车控制器VCU根据加速踏板开度和车辆状态计算出车辆总需求扭矩和BSG扭矩；步骤S2，发动机管理系统EMS根据所述车辆总需求扭矩和所述BSG扭矩计算出发动机扭矩；步骤S3，将所述发动机扭矩与所述BSG扭矩之和作为驱动车辆行驶的驱动扭矩。混合动力汽