In-vehicle communication system and in-vehicle communication method
First Claim
1. An in-vehicle communication system comprising:
- an input transmission apparatus includinga first device data input part that obtains, as first device data, data outputted from a device being installed in a vehicle;
a second device data input part that obtains, as second device data, the data; and
an input transmission part that transmits first input transmission data, including the first device data and first input safety communication data, and second input transmission data, including the second device data and second input safety communication data;
a control apparatus includinga first control determination part that determines whether communication of the first device data has been performed properly, using the first input safety communication data included in the first input transmission data;
a first control arithmetic part that, when the communication of the first device data has been performed properly, generates first control data by specifying control based on the first device data;
a second control determination part that determines whether communication of the second device data has been performed properly, using the second input safety communication data included in the second input transmission data;
a second control arithmetic part that, when the communication of the second device data has been performed properly, generates second control data by specifying control based on the second device data; and
a control transmission part that transmits first control transmission data including the first control data, and second control transmission data including the second control data; and
an output transmission apparatus includingan output receiving part that receives the first control transmission data and the second control transmission data; and
a device control data output part that outputs device control data for controlling a device to be controlled which is installed in the vehicle, based on the first control data and the second control data.
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Accused Products
Abstract
An increase in the number of signal lines of a control apparatus for controlling devices of an automobile can be prevented and safety of the automobile can be secured. An in-vehicle communication system includes an input DHM that obtains device data from an input device, a BCM that generates control data for controlling an output device based on a value of the device data, and an output DHM that controls the output device according to the control data. The input DHM is composed of duplexed input control blocks, duplexed input shared memories, and an input NW control block. The BCM is composed of a BCM_NW control block, duplexed BCM shared memories for different intended uses, and duplexed arithmetic blocks. The output DHM is composed of an output NW control block, duplexed output shared memories, duplexed output control blocks, and a matching circuit.
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Citations
16 Claims
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1. An in-vehicle communication system comprising:
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an input transmission apparatus including a first device data input part that obtains, as first device data, data outputted from a device being installed in a vehicle; a second device data input part that obtains, as second device data, the data; and an input transmission part that transmits first input transmission data, including the first device data and first input safety communication data, and second input transmission data, including the second device data and second input safety communication data; a control apparatus including a first control determination part that determines whether communication of the first device data has been performed properly, using the first input safety communication data included in the first input transmission data; a first control arithmetic part that, when the communication of the first device data has been performed properly, generates first control data by specifying control based on the first device data; a second control determination part that determines whether communication of the second device data has been performed properly, using the second input safety communication data included in the second input transmission data; a second control arithmetic part that, when the communication of the second device data has been performed properly, generates second control data by specifying control based on the second device data; and a control transmission part that transmits first control transmission data including the first control data, and second control transmission data including the second control data; and an output transmission apparatus including an output receiving part that receives the first control transmission data and the second control transmission data; and a device control data output part that outputs device control data for controlling a device to be controlled which is installed in the vehicle, based on the first control data and the second control data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An in-vehicle communication method comprising:
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obtaining, as first device data, data outputted from a device being installed in a vehicle, by a first device data input part of an input transmission apparatus being installed in the vehicle; obtaining the data as second device data, by a second device data input part of the input transmission apparatus; transmitting first input transmission data, including the first device data and first input safety communication data, and second input transmission data, including the second device data and second input safety communication data, to a control apparatus being installed in the vehicle, by an input transmission part of the input transmission apparatus; determining whether communication of the first device data has been performed properly, by a first control determination part of the control apparatus, using the first input safety communication data included in the first input transmission data; generating, when the communication of the first device data has been performed properly, first control data by specifying control based on the first device data, by a first control arithmetic part of the control apparatus; determining whether communication of the second device data has been performed properly, by a second control determination part of the control apparatus, using the second input safety communication data included in the second input transmission data, generating, when the communication of the second device data has been performed properly, second control data by specifying control based on the second device data, by a second control arithmetic part of the control apparatus; transmitting first control transmission data including the first control data, and second control transmission data including the second control data, to an output transmission apparatus being installed in the vehicle, by a control transmission part of the control apparatus; receiving the first control transmission data and the second control transmission data, by an output receiving part of the output transmission apparatus; and outputting device control data for controlling a device to be controlled which is installed in the vehicle, by a device control data output part of the output transmission apparatus, based on the first control data and the second control data.
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Specification