Charge control system and control method of plug-in hybrid power bus

Abstract

The invention discloses a charge control system of a plug-in hybrid power bus. A remote monitoring terminal, a whole bus controller VMS and a combination instrument can be awakened by a charging-awakening power supply, and the combination instrument can awaken a bus body control module. The whole bus controller VMS controls powering on and off of a battery management system (BMS) through a BMS power supply relay. The BMS controls switching on and off of a charging contactor. The whole bus controller VMS is further connected with a charging cabin door sensor. After a charging gun is plugged, a 24V low-voltage power supply of an international charging gun is utilized to automatically activate the combination instrument, the whole bus controller VMS and the remote monitoring terminal without manual power supply switching for activation, and charging operation steps are simple. After the charging gun is inserted, the combination instrument, the bus body control module and a whole bus controller are automatically switched to be in a charging control mode, an engine starting signal, a gear signal and an accelerator signal are shielded, mistaken bus startup is prevented during charging, and safety and reliability are high.

Description

technical field [0001] The invention relates to the charging control field of a plug-in hybrid electric passenger car, in particular to a charging control system and a control method of a plug-in hybrid electric passenger car. Background technique [0002] Plug-in hybrid buses have become the main force in the development of new energy buses due to their pure electric drive mode, unlimited driving range and reasonable cost. At present, when charging, it is necessary to manually turn on the vehicle power supply or the charging switch to activate the work of each controller required for charging, and the charging steps are cumbersome. At the same time, there is no uniform standard for the charging control method of plug-in hybrid electric buses in the country, and the charging control strategies of different manufacturers are different. When the charging gun is inserted, if the charging circuit design is not reasonable and the control strategy is not thoughtful, it is easy to ...

AI Technical Summary

Problems solved by technology

At present, when charging, it is necessary to manually turn on the vehicle power supply or the charging switch to activate the various controllers required for charging, and the charging steps are cumbersome.

At the same time, there is no uniform standard for the charging control method of plug-in hybrid electric buses in the country, and the charging control strategies of different manufacturers are different. When the charging gun is inserted, if the charging circuit design is not reasonable and the control strategy is not thoughtful, it is easy to cause various security incidents

For example, because the bus body is long, and the charging port is generally set at the rear of the vehicle, if the driver does not observe that the vehicle is charging and starts the vehicle by mistake, it is easy to damage the charging cable, charging socket and charger, and in severe cases, cause a short circuit of the high-voltage line start a fire

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