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US 10,241,807 B2Granted
Vehicle control device, reprogramming system
AssigneeHitachi Automotive Systems, Ltd.
InventorsFumiharu Nakahara, Kenichi Kurosawa
Life of this patent
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Abstract
Provided is a vehicle control device with which it is possible to reduce the time required to rewrite a control program. In the vehicle control device according to the present invention, after an updated version of the control program has been stored in a second storage unit, a first storage unit is initialized in advance before the instruction to update the control program has been executed.
Claims11
A vehicle control device comprising:
- a storage device configured to store a control program for implementing an operation to control a vehicle;
- an operation unit configured to execute the control program;
- and
- a rewriting unit configured to rewrite the control program stored in the storage device,
- wherein:
- the storage device includes a first storage unit and a second storage unit for storing the control program,
- after an updated version of the control program stored in the first storage unit has been stored in the second storage unit, the rewriting unit initializes the first storage unit when an ignition switch of the vehicle is turned OFF, and
- the operation unit executes the updated version of the control program which has been stored in the storage device by the rewriting unit.
5 more elements
A vehicle control device comprising:
- a storage device configured to store a control program for implementing an operation to control a vehicle;
- an operation unit configured to execute the control program;
- and
- a rewriting unit configured to rewrite the control program stored in the storage device,
- wherein:
- the storage device includes a first storage unit and a second storage unit for storing the control program,
- after an updated version of the control program stored in the first storage unit has been stored in the second storage unit, the rewriting unit initializes the first storage unit before starting to execute a command to instruct to update the control program stored in the second storage unit, and
- the operation unit executes the updated version of the control program which has been stored in the storage device by the rewriting unit,
- wherein after the updated version of the control program stored in the first storage unit has been stored in the second storage unit, the rewriting unit initializes the first storage unit when an ignition switch of the vehicle is turned OFF, and
- wherein in a process in which the updated version of the control program is written to the second storage unit, the rewriting unit connects a battery included in the vehicle to the vehicle control device regardless of the ON/OFF state of the ignition switch before initializing the first storage unit.
7 more elements
Dependencies are inferred from the claim text.