Huawei Technologies Co., Limited

Byd Company Limited

Jinlong Wang

Wei Dong Chen

Ou Ruan

Zhongshu Zhang

Ling Liu

Hao Chen

Weiping Song

Wanxiang Ma

This application discloses a power supply system, including: A first end of a bus capacitor is connected to a first end of a power supply, and a second end of the bus capacitor is connected to a second end of a semiconductor switch device. A first end of the semiconductor switch device is connected to a second end of the power supply. An input end of a power conversion circuit is connected to the bus capacitor. Two ends of a resistor are respectively connected to the first end and the second end of the semiconductor switch device. When the semiconductor switch device is switched off, the power supply supplies power to the bus capacitor by using the resistor. When a voltage of the bus capacitor is greater than a first preset voltage, an auxiliary power supply is powered on and the semiconductor switch device is switched off.

Power supply system, soft-start circuit, and control method

A powered device (PD) detection device is configured to identify a type of power sourcing equipment. The PD detection device includes a detection circuit and a processing circuit, and the detection circuit is connected to the processing circuit. The detection circuit is configured to: receive hierarchical waveform information sent by the power sourcing equipment, and generate a corresponding first-type signal or a corresponding second-type signal based on the hierarchical waveform information, and is further configured to send the first-type signal or the second-type signal to the processing circuit, where the first-type signal corresponds to first-type power sourcing equipment, and the first-type power sourcing equipment includes at least one of non-standard power sourcing equipment and a direct current adapter. The processing circuit is configured to: receive the first-type signal or the second-type signal, and determine the type of the power sourcing equipment based on the first-type signal or the second-type signal.

Powered device (PD) detection device

A hybrid electrical vehicle and a method for cruising control of the same are provided. The vehicle includes: a transmission device () connected with wheels () of the hybrid electrical vehicle; an engine () and a gearbox (), the engine () being connected with the transmission device () via the gearbox (); an electric motor () and a gear reducer (), the electric motor () being connected with the transmission device () via the gear reducer (); a power battery () configured to supply power to the electric motor (); and a control module configured to start the engine () and the electric motor () according to a working mode selected by a user from a plurality of working modes, and to control the vehicle to switch between the plurality of working modes according to a driving state of the vehicle and/or a working state of the power battery.

Hybrid electrical vehicle and method for cruising control of the same

A control system for a hybrid electric vehicle comprises a transmission system configured to drive wheels, an engine power subsystem connected to the transmission system, a motor power subsystem connected to the transmission system and a control module. When vehicle's electrical power is on, the control module is configured to control operating mode of the hybrid electric vehicle through the engine power subsystem and the motor power subsystem. The operating mode comprises HEV-eco mode and HEV-s mode. When the hybrid electric vehicle operates in HEV-eco and the hybrid electric vehicle operates at low power or when the hybrid electric vehicle operates in HEV-s mode and when the vehicle speed is zero, the control module enables the hybrid electric vehicle to operate by idle start-stop strategy.

Growing community of inventors

Shenzhen, China

Jinlong Wang