The invention discloses a DCDC and generator coordination control method for a hybrid electric vehicle, and relates to the technical field of hybrid electric vehicles, and the method comprises the steps: obtaining a voltage value of a storage battery; when the whole vehicle is in an ON gear, the DCDC is controlled to output a DCDC output voltage value to the storage battery; when the whole vehicle is in a START gear, a high-voltage system is normal and an engine is started, a DCDC output voltage value, a DCDC output power value, a generator target output voltage value and a generator output power value are obtained; and controlling the output states of the DCDC and the generator according to the storage battery voltage value, the DCDC output voltage value, the DCDC output power value, the target output voltage value of the generator and the output power value of the generator. The vehicle is provided with the low-power high-voltage DCDC and the engine driven generator at the same time, the DCDC and the generator are coordinated to work, the DCDC and the generator are matched, the DCDC and the generator are fully utilized for efficient output at the lowest cost and the highest utilization rate, and sufficient low-voltage power supply is provided for vehicle running.
本申请公开了一种混动汽车用DCDC与发电机的协调控制方法,涉及混动汽车技术领域,包括:获取蓄电池电压值;在整车上ON挡时,控制DCDC以DCDC输出电压值输出至蓄电池;在整车上START挡,高压系统正常且发动机启动时:获取DCDC输出电压值、DCDC输出功率值、发电机目标输出电压值以及发电机输出功率值;根据所述蓄电池电压值、DCDC输出电压值、DCDC输出功率值、发电机目标输出电压值以及发电机输出功率值控制DCDC与发电机的输出状态。车辆同时配备小功率高压DCDC和发动机带发电机,协调DCDC与发电机进行工作,使两者配合,以最低成本、最高使用率,充分利用DCDC与发电机进行高效输出,为车辆行驶提供充足的低压供电。
Coordination control method of DCDC and generator for hybrid electric vehicle
一种混动汽车用DCDC与发电机的协调控制方法
2025-01-17
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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