Cell parameter transmission device for pure electric bus

A battery parameter and transmission device technology, which is applied in the direction of measurement devices, signal transmission systems, and measurement electronics, can solve problems such as high hardware cost, low system reliability, and complex hardware composition and structure, and achieve simple hardware composition and structure, communication and transmission Fast speed, fast start-up effect

Inactive Publication Date: 2010-05-05
BEIJING JIAOTONG UNIV
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Problems solved by technology

This makes it impossible for EVT to self-test whether the wireless communication link with the monitoring center is normal. When the communication link is disconnected, EVT will not detect it, so certain measures cannot be taken to ensure normal communication.
In addition, the system reliability of

Method used

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  • Cell parameter transmission device for pure electric bus
  • Cell parameter transmission device for pure electric bus
  • Cell parameter transmission device for pure electric bus

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Embodiment Construction

[0029] specific implementation

[0030] The present invention will be further described in conjunction with accompanying drawing:

[0031] Pure electric bus battery parameter transmission device, the device includes: control board and expansion board, such as figure 1 shown.

[0032] The expansion board includes: GPRS wireless communication module, communication module interface circuit, communication module power supply circuit, control main board power supply circuit, watchdog circuit, CF memory card.

[0033] The model of described control mainboard is SAM-3221, and its embedded processor is 200Mhz ARM920T; There are three serial ports, embedded CAN (Controller Area Network local area network control) bus interface, USB interface, display interface inside. The signal of the first serial port 1 of the control board is converted by the communication module interface circuit and communicates with the GPRS wireless communication module for sending data to and receiving data f...

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Abstract

The invention relates to a cell parameter transmission device for a pure electric bus, comprising a control mainboard and an expansion board. The control mainboard is provided with a CPU of ARM920T based on an ARM core and internally integrated with a CAN bus interface so that the device has simple assembly structure, high-speed start and lower cost. For improving the communication reliability and the systematic reliability of the device, a watchdog circuit is designed on the expansion board to automatically detect a communication link state and a halted state of the device and recover from the halted state. The device is used for acquiring a great amount of cell parameter data by the CAN bus on a vehicle and transmitting a great amount of cell parameter data with a monitoring center in a GPRS wireless communication mode, wherein the cell parameter data comprise a voltage value of each single cell, a temperature value of each node of a cell box, and the like. The invention takes important effect on monitoring the cell parameters of a vehicle in the monitoring center.

Description

technical field [0001] The invention relates to the field of remote monitoring, in particular to a battery parameter transmission device for pure electric buses running. Background technique [0002] A pure electric bus is a bus whose power system is driven entirely by the electric energy of the battery. It is a new energy vehicle. Different from ordinary fuel buses, pure electric buses have the characteristics of zero exhaust emissions, which can improve the quality of the urban air environment and adjust the energy consumption structure. Therefore, the Chinese government currently encourages the production and use of pure electric buses. [0003] Since the pure electric bus is a product that combines multiple high-tech products, its power characteristics, driving performance and vehicle safety characteristics are closely related to the performance of the battery. For example, when the temperature of the battery is too high, it is easy to cause a battery explosion accident...

Claims

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Application Information

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IPC IPC(8): H04W4/12G01R31/36G08C17/02
Inventor 关伟毕军黄爱玲卫振林
Owner BEIJING JIAOTONG UNIV
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