Electrical power distribution system for a vehicle
First Claim
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1. An electrical power distribution system for a vehicle, said electrical power distribution system comprising:
- a control unit for sending command signals;
an electrical center remotely spaced from said control unit, wherein said electrical center includes a main printed circuit board having a plurality of control devices and a bus interface unit electrically connected to said main printed circuit board, wherein a watch dog circuit of the bus interface unit is configured to activate a limp home mode of the system if a microcontroller of the bus interface unit fails; and
a data bus connecting said control unit to said bus interface unit of electrical center.
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Abstract
An electrical and electronic system having a control unit connected to a remotely located electrical center by way of a data bus. The electrical center includes a bus interface unit and a main printed circuit board having a plurality of control devices such as relays, which selectively activate vehicle electrical circuits based on instructions from the control unit. The bus interface unit is that of a daughter board configured to be plugged into the main board of the electrical center, such as a Local Interconnect Network (LIN) interface board, and the data bus may be a LIN bus.
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Citations
17 Claims
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1. An electrical power distribution system for a vehicle, said electrical power distribution system comprising:
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a control unit for sending command signals; an electrical center remotely spaced from said control unit, wherein said electrical center includes a main printed circuit board having a plurality of control devices and a bus interface unit electrically connected to said main printed circuit board, wherein a watch dog circuit of the bus interface unit is configured to activate a limp home mode of the system if a microcontroller of the bus interface unit fails; and a data bus connecting said control unit to said bus interface unit of electrical center. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An electrical center for an electrical power distribution system of a vehicle, said electrical center comprising:
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a bus interface unit configured to receive a command signal, wherein a watchdog circuit of the bus interface unit is configured to activate a limp home mode of the system if a microcontroller of the bus interface unit fails; and a plurality of control devices electrically coupled to said bus interface unit. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification