Abstract: The control system has a structure in which sensor apparatuses each having a data communication function are connected to an electronic control apparatus through a common communication line, and the sensors of the sensor apparatuses are connected to the electronic control apparatus through separate individual signal lines to transmit sensor signals to the electronic control apparatus. The electronic control apparatus is configured to, prior to transmitting communication data to one of the sensor apparatuses through the communication line, set the signal line connected to the selected sensor apparatus in a state in which the voltage of the signal line is outside a variation range corresponding to a voltage range of the sensor signal, and set the signal lines connected to the other sensor apparatuses to each of which the communication data is not addressed in a state in which the voltage of the signal line is within the variation range.

Abstract: The present invention provides, as one aspect, a control system having sensor units and an electronic control unit. The electronic control unit includes a transmission controlling means which sets a signal line connected to the sensor unit, which is a destination of communication data, to a first state, sets the signal line connected to the sensor unit, which is not the destination, to a second state, and transmits the communication data to the destination via a communication line. The sensor unit includes a reception controlling means which determines a state of the signal line connecting a sensor to the electronic control unit. When determining that the signal line of the sensor unit is in the first state, the reception controlling means receives the communication data and performs a predetermined process. When determining that the signal line is in the second state, the reception controlling means discards the communication data.

Abstract: The control system has a structure in which sensor apparatuses each having a data communication function are connected to an electronic control apparatus through a common communication line, and the sensors of the sensor apparatuses are connected to the electronic control apparatus through separate individual signal lines to transmit sensor signals to the electronic control apparatus. The electronic control apparatus is configured to, prior to transmitting communication data to one of the sensor apparatuses through the communication line, set the signal line connected to the selected sensor apparatus in a state in which the voltage of the signal line is outside a variation range corresponding to a voltage range of the sensor signal, and set the signal lines connected to the other sensor apparatuses to each of which the communication data is not addressed in a state in which the voltage of the signal line is within the variation range.

Abstract: The present invention provides, as one aspect, a control system having sensor units and an electronic control unit. The electronic control unit includes a transmission controlling means which sets a signal line connected to the sensor unit, which is a destination of communication data, to a first state, sets the signal line connected to the sensor unit, which is not the destination, to a second state, and transmits the communication data to the destination via a communication line. The sensor unit includes a reception controlling means which determines a to state of the signal line connecting a sensor to the electronic control unit. When determining that the signal line of the sensor unit is in the first state, the reception controlling means receives the communication data and performs a predetermined process. When determining that the signal line is in the second state, the reception controlling means discards the communication data.