Byd Company Limited

Huawei Technologies Co., Limited

Shenzhen Byd Auto R&d Company Limited

Xianyin Li

Wei Feng

Qinyao Yang

Yaochuan Han

Wenjin Xia

Wenhui Xu

Shibin Ma

Yu Meng Li

Gang Chen

Zhen Qin

Jiahong Wei

Xiquan Zhang

Xuefeng Pan

Tianli Jiang

Yingjie Zhou

Jin Lin

Hongwei Huo

A method includes a gateway node that obtains a data transmission parameter between a first-level node and each node in a first node set, where the first-level node is located on a first-level power distribution device in a power distribution grid, and the first node set includes a node located on a power distribution device at another level in the power distribution grid other than the first-level power distribution device; determines a second-level node directly coupled to the first-level node from the first node set based on the data transmission parameter between the first-level node and each node in the first node set; and generates a physical network topology of the power distribution grid.

Method and apparatus for generating physical network topology

An electric vehicle running control system is provided. The electric vehicle running control system comprises a heating circuit coupled with an in-vehicle battery and configured to heat the in-vehicle battery. The vehicle running control system further comprises a load capacitor and a first current storage element. The first current storage element may be coupled with the load capacitor and the heating circuit respectively configured to reduce interference between the heating circuit and the load capacitor.

Electric vehicle running control system

According to certain embodiments, a battery heating circuit is provided, comprising a first switch unit, a second switch unit, a third switch unit, a fourth switch unit, a switching control module, a damping component R, a current storage component L, and a charge storage component C; the damping component Rand the current storage component Lare configured to connect with the battery in series to form a branch; the first switch unitand the second switch unitare connected in series with each other and then connected in parallel with the branch; the third switch unitand the fourth switch unitare connected in series with each other and then connected in parallel with the branch.

Battery heating circuits and methods using resonance components in series and bridging charge storage components

An electric vehicle running control system is provided. The electric vehicle running control system comprises: a heating circuit (); a load capacitor (C); a switchgear () connected with the heating circuit () and the load capacitor (C) respectively; and a switch control module () connected with the switchgear () for controlling the switchgear () to switch off when the heating circuit () is connected with an in-vehicle battery () to form a heating loop for heating the in-vehicle battery ().

Certain embodiments of the present invention provide a battery heating circuit, comprising a plurality of switch units, a switching control module, a damping component R, an energy storage circuit, and a polarity inversion unit, wherein: the energy storage circuit is connected with the battery, and comprises a current storage component Land a plurality of charge storage components C; the plurality of charge storage components Care connected with the plurality of switch unitsin series in one-to-one correspondence to form a plurality of branches; the plurality of branches is connected in parallel with each other and then connected with the current storage component Land damping component Rin series; the switching control moduleis connected with the switch units, and is configured to control ON/OFF of the switch units

Battery heating circuits and methods based on battery discharging and charging using resonance components in series and multiple charge storage components

Under one aspect, a heating circuit for a battery includes a plurality of switch units, a switching control module, a damping component, an energy storage circuit, and a polarity inversion unit. The energy storage circuit is connected with the battery, and includes a current storage component and a plurality of charge storage components that respectively are connected with the plurality of switch units in series to form a plurality of branches that are connected in parallel with each other and in series with the current storage and damping components. The switching control module controls switching on and off of the switch units, so that energy flows back-and-forth between the battery and the energy storage circuit when the switch units switch on. The polarity inversion unit is connected with the energy storage circuit inverts a voltage polarity of the plurality of charge storage components after the switch units switch off.

Under one aspect, a battery heating circuit includes damping and current storage components connected with the battery to form a first part of a first loop. First and second switch units are connected with the first part of the first loop. Third and fourth switch units are connected with the first part of the first loop to form a second loop. A charge storage component is connected across the first and second loops. The first and third switch units and charge storage component form branches transferring energy between the battery and charge storage component, and the fourth and second switch units and charge storage component form branches transferring energy between the battery and charge storage component. The switching control module switches on and off the first through fourth switch units to control energy flow between the battery and charge storage component.

Battery heating circuits and methods using resonance components in series and bridge charge storage components

Certain embodiments of the present invention provide a battery heating circuit, comprising a switch unit, a switching control module, a damping component R, an energy storage circuit, and an energy superposition unit; the energy storage circuit is configured to connect with the battery to form a loop, and comprises a current storage component Land a charge storage component C; the damping component R, the switch unit, the current storage component L, and the charge storage component Care connected in series; the switching control moduleis connected with the switch unit, and is configured to control ON/OFF of the switch unit, so as to control the energy flowing between the battery and the energy storage circuit.

Battery heating circuits and methods using voltage inversion based on predetermined conditions

A circuit for heating a battery includes a switch unit, control module, damping component, energy storage circuit, and superposition unit. The energy storage circuit forms a loop with the battery, and includes current and charge storage components. The damping component, switch unit, current storage component, and charge storage component connect in series. The control module switches on the switch unit so current flows between the battery and energy storage circuit and switches off the switch unit to stop current flow. The superposition unit superposes energy in the energy storage circuit with energy in the battery after the switch unit switches on and off. The control module switches the switch unit off after the first positive half cycle of current flow through the switch unit after the switch unit switches on. Voltage applied to the switch unit when the switch unit switches off is lower than the switch unit's voltage rating.

Battery heating circuits and methods with resonance components in series using voltage inversion based on predetermined conditions

Circuit and method for heating a battery. The circuit includes the battery with damping component, a switch unit, a switching control module, an energy storage circuit, a freewheeling circuit, and an energy superposition unit. The energy storage circuit connects with the battery to form a loop, and includes current and charge storage components. The damping component, switch unit, current storage component, and charge storage component connect in series. The switching control module turns on the switch unit such that current flows between the battery and energy storage circuit. The energy superposition unit superposes the energy in the energy storage circuit with the energy in the battery after the switch unit switches on and then off. The freewheeling circuit forms a serial loop with the battery and the current storage component to sustain current flow in the battery after the switch unit switches on and then off.

Battery heating circuits and methods with resonance components in series using voltage inversion and freewheeling circuit components

Certain embodiments of the present invention provide a battery heating circuit, comprising a switch unit, a switching control module, a damping component R, an energy storage circuit, a freewheeling circuit, and an energy superposition unit; the energy storage circuit is configured to connect with the battery to form a loop, and comprises a current storage component Land a charge storage component C; the damping component R, the switch unit, the current storage component L, and the charge storage component Care connected in series; the switching control moduleis connected with the switch unit, and is configured to control ON/OFF of the switch unit, so as to control the energy flowing between the battery and the energy storage circuit; the energy superposition unit is connected with the energy storage circuit.

Battery heating circuits and methods using voltage inversion and freewheeling circuit components

A system for line powering includes at least one office-end PSU, one standby PSU and one power switching unit. The office-end PSU provides power for a group of subscriber lines in a centralized manner. The power switching unit monitors the power supply status of the office-end PSU and controls the switching between the office-end PSU and standby PSU. In embodiments of the invention, different rectifier/boost circuits and different step-down circuits need not be set for each pair of subscriber lines between the office-end PSU and the remote device. When an office-end PSU fails to supply power, the standby PSU can be switched over quickly to supply power for the remote device, which cuts down the cost for designing the office-end PSU and the standby PSU while ensuring the reliability of power supply for the remote device.

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Shenzhen, China

Xianyin Li