Wiper apparatus control method and wiper control system
First Claim
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 an operation control for the first wiper blade and the second wiper blade is performed 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, the control information including the setting state of the wiper switch, and to a switch signal line directly connected to the wiper switch, andthe first control circuit acquires the setting state of the wiper switch through the vehicle information communication line when a communication state of the vehicle information communication line is normal, acquires the setting state of the wiper switch through the switch signal line when abnormality occurs in the communication state of the vehicle information communication line, and drive-controls the first motor and the second motor by the first control circuit and the second control circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
A wiper apparatus (1) includes: a wiper blade (2a) driven by a motor (3a); and a wiper blade (2b) driven by a motor (3b). The motors (3a, 3b) are drive-controlled by control microcomputers (5a, 5b), respectively. The control microcomputers (5a, 5b) are connected to each other through a communication line (7). While exchanging position information of the wiper blades (2a, 2b) through the communication line (7), the control microcomputers (5a, 5b) synchronously drive the motors (3a, 3b) on the basis of a position relationship between both of the wiper blades. When abnormality occurs in a communication state of an in-vehicle LAN (8), a setting state of a wiper switch (9) is grasped through a switch signal line (10) directly connected to the wiper switch (9), and wipers are prevented from being stopped when such communication abnormality occurs.
19 Citations
3 Claims
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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 an operation control for the first wiper blade and the second wiper blade is performed 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, the control information including the setting state of the wiper switch, and to a switch signal line directly connected to the wiper switch, and the first control circuit acquires the setting state of the wiper switch through the vehicle information communication line when a communication state of the vehicle information communication line is normal, acquires the setting state of the wiper switch through the switch signal line when abnormality occurs in the communication state of the vehicle information communication line, and drive-controls the first motor and the second motor by the first control circuit and the second control circuit.
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2. A control system for a vehicle wiper apparatus comprising a first wiper blade that is driven by a first motor, and a second wiper blade that is driven by a second motor, in which an operation control for the first wiper blade and the second wiper blade is performed in accordance with a setting state of a wiper switch, the control system for the vehicle wiper apparatus comprising:
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a vehicle information communication line that transmits control information from a vehicle side, the control information including the setting state of the wiper switch; a switch signal line directly connected to the wiper switch; a first control circuit that is connected to the vehicle information communication line and the switch signal line, and performs a drive control for the first motor; and a second control circuit that is connected to the first control circuit through a communication line, and performs a drive control for the second motor, wherein the first control circuit acquires the setting state of the wiper switch through the vehicle information communication line when a communication state of the vehicle information communication line is normal, acquires the setting state of the wiper switch through the switch signal line when abnormality occurs in the communication state of the vehicle information communication line, and drive-controls the first motor and the second motor by the first control circuit and the second control circuit. - View Dependent Claims (3)
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Specification