Shunt for control network in light duty motor vehicle
First Claim
Patent Images
1. In a light duty motor vehicle having a wiring harness including at least one network and an electronic circuit coupled to that network, a shunt for emulating the electronic circuit, said shunt comprising:
- a programmed microprocessor;
an interface circuit coupled to the microprocessor and to said network;
said microprocessor having a first mode of operation wherein date from said network is stored by the microprocessor and a second mode of operation, whereby removal of the electronic circuit does not cause an error condition on the network because appropriate data is supplied instead by the microprocessor during the second mode of operation.
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Accused Products
Abstract
A programmed microprocessor has a learning mode of operation wherein data to and from a circuit coupled to a wiring harness in a vehicle is stored by the microprocessor. After the learning mode is completed, removal of the circuit does not cause an error condition because appropriate data is supplied instead by the microprocessor. A sleep mode of operation prevents the microprocessor from interfering with the operation of the circuit when the circuit and the microprocessor are coupled to the wiring harness.
4 Citations
10 Claims
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1. In a light duty motor vehicle having a wiring harness including at least one network and an electronic circuit coupled to that network, a shunt for emulating the electronic circuit, said shunt comprising:
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a programmed microprocessor; an interface circuit coupled to the microprocessor and to said network; said microprocessor having a first mode of operation wherein date from said network is stored by the microprocessor and a second mode of operation, whereby removal of the electronic circuit does not cause an error condition on the network because appropriate data is supplied instead by the microprocessor during the second mode of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification