Communication control unit for vehicle and communication control system for vehicle
AssigneeSubaru Corporation
InventorMasakazu Yoshino
Life of this patent
Estimating the term…
Abstract
A communication control unit for a vehicle is configured to be coupled to a first bus that couples control units to each other in the vehicle. The communication control unit includes a determination module and a communication control module. The determination module comprehensively determines whether to prohibit initialization of respective pieces of malfunction information stored in the control units, on the basis of a state of the vehicle. The communication control module transmits, to the first bus, an initialization control signal for controlling whether to prohibit the initialization of the malfunction information on the basis of a result of the determination made by the determination module.
Claims18
A communication control system for a vehicle, the communication control system comprising:
- a bus mounted on the vehicle;
- one or more control units coupled to the bus, the one or more control units respectively storing pieces of malfunction information, the respectively stored pieces of malfunction information being initialized in response to an initialization request that is received from an external unit coupled to the bus;
- and
- a communication control unit coupled to the one or more control units via the bus,
- wherein the communication control unit comprehensively determines, based on a state of the vehicle, whether to prohibit initialization of the respectively stored pieces of malfunction information in the control units, and
- wherein in response to determining to prohibit the initialization of the respectively stored pieces of malfunction information, the communication control unit transmits, via the bus, an initialization prohibition signal to the one or more control units, and
- wherein when the one or more control units receive the initialization request from the external unit and when the one or more control units receive the initialization prohibition signal from the communication control unit, the one or more control units prohibit initialization of the respectively stored pieces of malfunction information.
A communication control system for a vehicle, the communication control system comprising:
- a first bus mounted on the vehicle;
- one or more first control units coupled to the first bus, the one or more first control unit respectively storing pieces of malfunction information, the respectively stored pieces of malfunction information being initialized in response to an initialization request that is received from an external unit coupled to the first bus;
- and
- a first communication control unit coupled to the one or more first control units via the first bus, wherein
- the first communication control unit 1) comprehensively determines, based on a state of the vehicle, whether to prohibit the initialization of the respectively stored pieces of malfunction information and 2) transmits, to the one or more first control units via the first bus, an initialization prohibition signal in response to determining to prohibit the initialization of the respectively stored pieces of malfunction information, and
- when the one or more first control units receive the initialization request from the external unit and when the one or more control units receive the initialization prohibition signal from the first communication control unit, the one or more first control units prohibit initialization of the respectively stored pieces of malfunction information.
A communication control unit for a vehicle, comprising:
- circuitry configured to:
- determine, based on a state of the vehicle, whether to prohibit initialization of pieces of malfunction information respectively stored in one or more control units, the one or more control units coupled to 1) a bus mounted on the vehicle and 2) the communication control unit via the bus, the respectively stored pieces of malfunction information being initialized in response to an initialization request that is received from an external unit coupled to the bus;
- and
- in response to determining to prohibit the initialization of the respectively stored pieces of malfunction information, 1) transmit, via the bus, an initialization prohibition signal to the one or more control units and 2) allow the one or more control units to set status of the one or more control units to initialization prohibition status,
- wherein when the one or more control units receive the initialization request from the external unit and when the status of the one or more control units are set to the initialization prohibition status, the one or more control units prohibit initializing the respectively stored pieces of malfunction information.
Dependencies are inferred from the claim text.