High-voltage integrated control system and method for new energy bus

Abstract

The invention discloses a high-voltage integrated control system and method for a new energy bus. The system comprising an energy storage system module (1), a low-voltage power supply and control module (4), a main loop module (5), a DCDC loop module (3), and an off-board charging socket module (6), wherein the off-board charging socket module is connected with the energy storage system module, the off-board charging socket module sends a charging connection signal to the energy storage system module and a vehicle control module (45) for starting a charging process; the DCDC loop module includes a DCDC contactor module (31), a DCDC module (32), and a DCDC precharge module (33); the DCDC contactor module and the DCDC precharge module are connected in parallel and connected in series betweenthe energy storage system module and the DCDC module; and the DCDC module is connected to a battery module (41). By the adoption of the high-voltage integrated control system and method for the new energy bus, a manual gate is not closed during charging, and power supply is directly converted by high voltage via a DCDC power source, and power is supplied to a low voltage electronic module that needs to work during the charging, thereby avoiding a risk of power shortage of the battery; and cost and complexity of the system are reduced by reusing the DCDC module.

Description

technical field [0001] The invention relates to a new energy vehicle high-voltage electrical integrated control system and a control method thereof, in particular to a new energy bus high-voltage integrated control system and a control method thereof. Background technique [0002] According to national regulations and the operation and maintenance requirements of the bus company, a manual gate needs to be installed near the low-voltage battery of the bus. After the bus stops running every day, the manual gate needs to be cut off manually to ensure that the low-voltage power supply of the vehicle is cut off to prevent safety accidents. New energy buses, especially buses that need to be parked for a long time to charge, are usually charged at night, and the charging time is relatively long, usually 3-4 hours; when the vehicle is charged, the remote monitoring module and energy on the vehicle Management modules and the like need to work and consume low-voltage electricity. If o...

AI Technical Summary

Problems solved by technology

However, because the charging personnel often forget to disconnect the gate after charging, the battery will lose power and affect the service life of the battery.

[0004] In the prior art, there is also a scheme of adding a set of DCDC modules on the basis of the existing structure. The DCDC module only works when parking and charging, so as to supply power to the low-voltage electronic modules that need to work during charging. This scheme increases system cost and complexity

Images