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US 2018/0120797 A1Published application
Vehicle load control device, method of rewriting control program for the same, and control program rewriting system
AssigneeYazaki Corporation
InventorsSatoshi Morita, Yoshihide Nakamura, Yasuyuki Shigezane, Yoshinori Ikuta, Shuuji Satake
Life of this patent
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Abstract
A vehicle load control device repeats a determination state in which at least one of a plurality of switching elements is turned off from an initial state in which the switching elements are all in an ON state until all of the switching elements have different ON/OFF states, and determines a connection form for each connection portion based on the change between an initial current value detected in the initial state and a determination current value detected for each determination state.
Claims4
A vehicle load control device comprising:
- a plurality of connection portions that are connected in parallel to a power source of a vehicle and one or more of which are connectable to one load;
- a plurality of switching elements that are provided to correspond to respective connection portions, each of the switching elements supplying power from the power source to the connection portion when the switching element is in an ON state, and blocking power from the power source when the switching element is in an OFF state;
- a controller configured to have a determination mode in which the switching elements are individually controlled based on a control program and a connection form in which the plurality of connection portions are connected to the load is determined;
- and
- a current detector configured to detect a current value of current flowing in the connection portion when the switching element is in the ON state, wherein
- the controller in the determination mode repeats a determination state in which at least one of the switching elements is turned off from an initial state in which the switching elements are all in the ON state until all of the switching elements have different ON/OFF states, and determines the connection form for each connection portion based on a change between an initial current value detected in the initial state and a determination current value detected for each determination state, and
- the controller controls the switching elements individually based on the control program in accordance with the connection form determined by the determination mode.
4 more elements
A control program rewriting method for a vehicle load control device including:
- a plurality of connection portions that are connected in parallel to a power source of a vehicle and one or more of which are connectable to one load;
- a plurality of switching elements that are provided to correspond to respective connection portions, each of the switching elements supplying power from the power source to the connection portion when the switching element is in an ON state, and blocking power from the power source when the switching element is in an OFF state;
- a controller configured to have a determination mode in which a connection form in which the plurality of connection portions are connected to the load is determined and to control the switching elements individually based on a control program in accordance with the connection form determined by the determination mode;
- a current detector configured to detect a current value of current flowing in the connection portion when the switching element is in the ON state;
- and
- a communication unit configured to communicate with an information processing device in a wired or wireless manner,
- the control program rewriting method comprising the steps of:
- by the controller in the determination mode, repeating a determination state in which at least one of the switching elements is turned off from an initial state in which the switching elements are all in the ON state until all of the switching elements have different ON/OFF states, and determining the connection form for each connection portion based on a change between an initial current value detected in the initial state and a determination current value detected for each determination state;
- by the communication unit, transmitting identification information indicating the connection form determined at the determining to the information processing device;
- by the communication unit, receiving the control program selected in accordance with the identification information indicating the connection form in the information processing device;
- and
- by the controller, rewriting the control program stored in advance into the control program received at the receiving.
9 more elements
A control program rewriting system in which a vehicle load control device is communicably connected to an information processing device, the vehicle load control device comprising:
- a plurality of connection portions that are connected in parallel to a power source of a vehicle and one or more of which are connectable to one load;
- a plurality of switching elements that are provided to correspond to respective connection portions, each of the switching elements supplying power from the power source to the connection portion when the switching element is in an ON state, and blocking power from the power source when the switching element is in an OFF state;
- a controller configured to have a determination mode in which the switching elements are controlled individually based on a control program and a connection form in which the plurality of connection portions are connected to the load is determined;
- a current detector configured to detect a current value of current flowing in each of the connection portions when the switching element is in the ON state;
- and
- a first communication unit configured to communicate with the information processing device in a wired or wireless manner, wherein
- the controller in the determination mode repeats a determination state in which at least one of the switching elements is turned off from an initial state in which the switching elements are all in an ON state until all of the switching elements have different ON/OFF states and determines the connection form for each connection portion based on a change between an initial current value detected in the initial state and a determination current value detected for each determination state,
- the first communication unit transmits identification information indicating the connection form determined by the controller to the information processing device, and receive the control program selected in accordance with the identification information indicating the connection form in the information processing device,
- the controller rewrites the control program stored in advance into the control program received in the first communication unit,
- the information processing device includes a second communication unit that receives the identification information indicating the connection form from the vehicle load control device, a storage unit that stores therein a plurality of control programs, and a selection unit that selects the control program in accordance with the identification information indicating the connection form received in the second communication unit from among the control programs stored in advance in the storage unit, and
- the second communication unit transmits the control program selected by the selection unit to the vehicle load control device.
8 more elements
Dependencies are inferred from the claim text.