IN-VEHICLE NETWORK SYSTEM AND CONTROL METHOD THEREOF
First Claim
1. An in-vehicle network system, comprising:
- a first actuator and at least one second actuator;
at least one shared sensor outputting a sensing value according to a sensing result;
a first sub ECU (Electronic Control Unit) controlling the driving of the first actuator and outputting a first sub sensing value corresponding to the sensing value received from the shared sensor;
a second sub ECU controlling the driving of the first actuator and outputting a second sub sensing value corresponding to the sensing value received from the shared sensor; and
a main ECU communicating with the first sub ECU and the second sub ECU according to a TDMA (Time Division Multiple Access)-based communication protocol, and determining that any one of the first ECU and the second ECU is abnormal in case that a difference between the first sensing value and the second sensing value respectively outputted from the first sub ECU and the second sub ECU is out of a previously set error tolerance.
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Abstract
The present invention relates to an in-vehicle networks system and a method of controlling the same. The in-vehicle network system includes a first actuator and second actuators; shared sensors outputting a sensing value according to a sensing result; a first sub ECU controlling the driving of the first actuator and outputting a first sub sensing value corresponding to the sensing value from the shared sensors; a second sub ECU controlling the driving of the first actuator and outputting a second sub sensing value corresponding to the sensing value from the shared sensors; and a main ECU communicating with the first sub ECU and the second sub ECU according to a TDMA-based communication protocol, and determining that any one of the first ECU and the second ECU is abnormal in case that a difference between the first sensing value and the second sensing value is out of an error tolerance.
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Citations
24 Claims
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1. An in-vehicle network system, comprising:
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a first actuator and at least one second actuator; at least one shared sensor outputting a sensing value according to a sensing result; a first sub ECU (Electronic Control Unit) controlling the driving of the first actuator and outputting a first sub sensing value corresponding to the sensing value received from the shared sensor; a second sub ECU controlling the driving of the first actuator and outputting a second sub sensing value corresponding to the sensing value received from the shared sensor; and a main ECU communicating with the first sub ECU and the second sub ECU according to a TDMA (Time Division Multiple Access)-based communication protocol, and determining that any one of the first ECU and the second ECU is abnormal in case that a difference between the first sensing value and the second sensing value respectively outputted from the first sub ECU and the second sub ECU is out of a previously set error tolerance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of controlling an in-vehicle network system comprising the steps of:
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outputting a sensing value according to a sensing result from a shared sensor; outputting a first sub sensing value corresponding to the sensing value by a first sub ECU(Electronic Control Unit) controlling the driving of a first actuator; outputting a second sub sensing value corresponding to the sensing value by a second sub ECU controlling the driving of a second actuator; inputting the first sensing value and the second sensing value to a main ECU communicating with the first sub ECU and the second sub ECU according to a TDMA (Time Division Multiple Access)-based communication protocol; and determining that any one of the first sub ECU and the second sub ECU is abnormal by the main ECU in case that a difference between the first sub sensing value and the second sub sensing value is out of a previously set error tolerance. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification