The invention discloses a vehicle circuit structure compatible with multiple data acquisition modes. The vehicle circuit structure comprises a first connecting circuit and a second connecting circuitwhich are arranged between a micro-control unit chip and a CAN transceiver interface chip, the second connection circuit is provided with a first switch, and when the first switch is in a first state,the second connecting circuit is connected to enable the micro-control unit chip to send data to the CAN transceiver interface chip; when the first switch is in a second state, the second connectingcircuit is disconnected, so that the micro-control unit chip can only receive data from the CAN transceiver interface chip; a third connecting circuit and a fourth connecting circuit are arranged between the CAN transceiver interface chip and the vehicle-mounted CAN interface, and a fifth connecting circuit is connected in parallel between the third connecting circuit and the fourth connecting circuit; and the fifth connecting circuit comprises a second switch and a terminal adaptive resistor which are connected in series. The vehicle data acquisition capability is significantly improved.
本发明公开了一种兼容多种数据获取模式的车辆电路结构,包括在微控制单元芯片与CAN收发器接口芯片之间设置第一连接电路和第二连接电路,所述第二连接电路上设置有第一开关,当所述第一开关位于第一状态时,所述第二连接电路被连通以使得所述微控制单元芯片能够向所述CAN收发器接口芯片发送数据;当所述第一开关位于第二状态时,所述第二连接电路被断开以使得所述微控制单元芯片只能够从所述CAN收发器接口芯片接收数据;在CAN收发器接口芯片与车载CAN接口之间设置第三连接电路和第四连接电路,所述第三连接电路和第四连接电路之间并联有第五连接电路;所述第五连接电路包括串联的第二开关和终端适配电阻。本发明显著提升车辆数据的获取能力。
Vehicle circuit structure compatible with multiple data acquisition modes
一种兼容多种数据获取模式的车辆电路结构
31.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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