Vehicle meter unit
First Claim
1. A vehicle meter unit for receiving fault diagnostic information from systems, including an engine control system, an anti-lock braking system and an electric power steering system which have respective system CAN controllers forming a communications network in the vehicle and fault diagnostic functions, and displaying the information, said vehicle meter unit comprising:
- a vehicle meter unit CAN controller for communicating with said systems; and
a control unit for, when an engine of the vehicle is stopped and an ignition switch has been turned on, transmitting via said vehicle meter unit CAN controller a command to perform fault diagnosis to said systems, causing said systems to transmit fault codes based on the command, and directing to display the fault codes.
1 Assignment
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Accused Products
Abstract
A vehicle meter unit has a control unit and a controller area network (CAN) constituting a communications network. On-vehicle systems such as an engine control system, anti-lock braking system and electric power steering system are also provided with CANs and fault diagnostic functions for decentralized control. Faults in the systems are displayed in fault codes through the control unit on a liquid crystal display on which the indications of an odometer and trip recorder are displayed.
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Citations
5 Claims
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1. A vehicle meter unit for receiving fault diagnostic information from systems, including an engine control system, an anti-lock braking system and an electric power steering system which have respective system CAN controllers forming a communications network in the vehicle and fault diagnostic functions, and displaying the information, said vehicle meter unit comprising:
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a vehicle meter unit CAN controller for communicating with said systems; and a control unit for, when an engine of the vehicle is stopped and an ignition switch has been turned on, transmitting via said vehicle meter unit CAN controller a command to perform fault diagnosis to said systems, causing said systems to transmit fault codes based on the command, and directing to display the fault codes. - View Dependent Claims (2, 3, 4, 5)
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Specification