The invention provides a control method for an adjustable high-power DC/DC converter of a hybrid electric vehicle. The method is realized by a power supply, a DC/DC converter, a PWM driver and a control system, and the DC/DC converter comprises a plurality of DC/DC conversion sub-modules which are connected in parallel; the control system comprises a main controller, a PWM wave controller, a current sampling module and a voltage sampling module, the main controller communicates with the vehicle control unit, obtains the target output power of the DC/DC converter and determines the working mode of the DC/DC converter, and therefore a PWM wave control signal is determined; the PWM wave controller determines a PWM control signal according to the working mode and the PWM wave control signal; the PWM driver adjusts the output power of the at least one DC/DC conversion sub-module according to the PWM control signal; and the output power of the DC/DC converter is equal to the target power. According to the invention, the real-time performance of the output power is guaranteed.
本发明提供一种用于混合动力汽车可调式大功率DC/DC变换器的控制方法,该方法由动力电源、DC/DC变换器、PWM驱动器、控制系统来实现,DC/DC变换器包括并联的多路DC/DC变换子模块;所述控制系统包括主控制器、PWM波控制器、电流采样模块和电压采样模块,主控制器与整车控制器进行通信,获取DC/DC变换器的目标输出功率,确定DC/DC变换器的工作模式,从而确定PWM波控制信号;PWM波控制器根据工作模式和PWM波控制信号确定PWM控制信号;PWM驱动器根据PWM控制信号调节至少一路DC/DC变换子模块的输出功率;直至DC/DC变换器的输出功率等于目标功率。本发明的输出功率实时性得到了保障。
Control method for adjustable high-power DC/DC converter of hybrid electric vehicle
一种混合动力汽车可调式大功率DC/DC变换器的控制方法
2021-07-09
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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