Patent ID: 8112197
Filing Date: 2012-02-07
Classification: B60S

Abstract:
1. A control method for a vehicle wiper apparatus comprising a first motor that is drive-controlled by a first control circuit, a first wiper blade that is driven by the first motor, a second motor that is drive-controlled by a second control circuit connected to the first control circuit through an intermediation of a communication line, and a second wiper blade that is driven by the second motor, wherein, said method comprises: adjusting an operation control for the first wiper blade and the second wiper blade in accordance with a setting state of a wiper switch; wherein the first control circuit is connected to a vehicle information communication line that transmits control information from a vehicle-side control unit, the control information including the setting state of the wiper switch, and the first control circuit is connected to a switch signal line directly connected to the wiper switch; detecting a communication state of the vehicle information communication line using a communication state detection unit of the first control circuit; using the first control circuit to acquire the setting state of the wiper switch through the vehicle information communication line when the communication state detection unit determines that the communication state of the vehicle information communication line is normal; using a switch information input switching unit of the first control circuit to switch a route for acquiring the setting state of the wiper switch from the vehicle information communication line to the switch signal line and obtaining an ON/OFF setting of the wiper switch regardless of a wiper operating mode through the switch signal line when the communication state detection unit determines that the communication state of the vehicle information communication line is abnormal; and synchronously drive controlling the first motor and the second motor in a fixed state regardless of the wiper operating mode by using the first control circuit and the second control circuit, respectively, when the ON setting of the wiper switch in confirmed and when the communication state of the vehicle information communication line is abnormal.