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US 12,734,891 B2Granted
Vehicle control device and vehicle control method
AssigneeHonda Motor Co., Ltd.
InventorHirotsune Kido
Life of this patent
Estimating the term…
Abstract
A vehicle control device includes a plurality of power unit mounted on a vehicle, and a processing part configured to control the power units. Each of the plurality of power units includes a rotating electric machine configured to exchange torque with driving wheels, a power storage device and a fuel cell that are power sources, and an electric power controller. The processing part controls an operation of a rotating electric machine in an abnormal power unit according to a state of charge of the power storage device, a rotation number of the rotating electric machine, and torque requirement of the vehicle in the abnormal power unit, when an abnormality of any fuel cell system occurs.
Claims12
A vehicle control device comprising:
- a plurality of power units mounted on a vehicle;
- and
- a controller configured to control the plurality of power units,
- wherein each of the plurality of power units includes:
- a rotating electric machine configured to exchange torque with wheels;
- a power storage device and a fuel cell, which are power sources;
- and
- an electric power controller configured to control electric power transmission of the rotating electric machine, the power storage device and the fuel cell, and
- wherein the controller is further configured to:
- determine that an abnormality has occurred in the fuel cell of a power unit of the plurality of power units, resulting in a determination of an abnormal fuel cell, and
- based on the determination of the abnormal fuel cell, control an operation of an abnormal rotating electric machine, which is the rotating electric machine having the abnormal fuel cell, wherein the control of the operation of the abnormal rotating electric machine operates the abnormal rotating electric machine in a power mode when a rotation number is smaller than a predetermined rotation number, a torque requirement is equal to or greater than a predetermined torque, and a state of charge is equal to or greater than a predetermined state of charge, and the control of the operation of the abnormal rotating electric machine stops the abnormal rotating electric machine or reduces the torque of the abnormal rotating electric machine to zero when the rotation number is smaller than the predetermined rotation number, the torque requirement is equal to or greater than the predetermined torque, and the state of charge is smaller than the predetermined state of charge based on the state of charge of the power storage device in the power unit having the abnormal fuel cell, the rotation number of the abnormal rotating electric machine, and the torque requirement of the vehicle.
8 more elements
A vehicle control device comprising:
- a plurality of power units mounted on a vehicle;
- and
- a controller configured to control the plurality of power units,
- wherein each of the plurality of power units includes:
- a rotating electric machine configured to exchange torque with wheels;
- a power storage device and a fuel cell, which are power sources;
- and
- an electric power controller configured to control electric power transmission of the rotating electric machine, the power storage device and the fuel cell, and
- wherein the controller is further configured to:
- determine that an abnormality has occurred in the fuel cell of a power unit of the plurality of power units, resulting in a determination of an abnormal fuel cell, and
- based on the determination of the abnormal fuel cell, control an operation of an abnormal rotating electric machine, which is the rotating electric machine having the abnormal fuel cell, wherein the control of the operation of the abnormal rotating electric machine stops the abnormal rotating electric machine or reduces the torque of the abnormal rotating electric machine to zero when a rotation number is smaller than a predetermined rotation number, a torque requirement is smaller than a predetermined torque, and a state of charge is equal to or greater than a predetermined state of charge, and the control of the operation of the abnormal rotating electric machine operates the abnormal rotating electric machine in a regenerative mode when the rotation number is smaller than the predetermined rotation number, the torque requirement is smaller than the predetermined torque, and the state of charge is smaller than the predetermined state of charge, based on the state of charge of the power storage device in the power unit having the abnormal fuel cell, the rotation number of the abnormal rotating electric machine, and the torque requirement of the vehicle.
8 more elements
A vehicle control device comprising:
- a plurality of power units mounted on a vehicle;
- and
- a controller configured to control the plurality of power units,
- wherein each of the plurality of power units includes:
- a rotating electric machine configured to exchange torque with wheels;
- a power storage device and a fuel cell, which are power sources;
- and
- an electric power controller configured to control electric power transmission of the rotating electric machine, the power storage device and the fuel cell, and
- wherein the controller is further configured to:
- determine that an abnormality has occurred in the fuel cell of a power unit of the plurality of power units, resulting in a determination of an abnormal fuel cell, and
- based on the determination of the abnormal fuel cell, control an operation of an abnormal rotating electric machine, which is the rotating electric machine having the abnormal fuel cell, wherein the control of the operation of the abnormal rotating electric machine operates the abnormal rotating electric machine in a power mode when a rotation number is equal to or greater than a predetermined rotation number, a torque requirement is equal to or greater than a predetermined torque, and a state of charge is equal to or greater than a predetermined state of charge, and the control of the operation of the abnormal rotating electric machine stops the abnormal rotating electric machine or reduces the torque of the abnormal rotating electric machine to zero when the rotation number is equal to or greater than the predetermined rotation number, the torque requirement is equal to or greater than the predetermined torque, and the state of charge is smaller than the predetermined state of charge, based on the state of charge of the power storage device in the power unit having the abnormal fuel cell, the rotation number of the abnormal rotating electric machine, and the torque requirement of the vehicle.
8 more elements
A vehicle control device comprising:
- a plurality of power units mounted on a vehicle;
- and
- a controller configured to control the plurality of power units,
- wherein each of the plurality of power units includes:
- a rotating electric machine configured to exchange torque with wheels;
- a power storage device and a fuel cell, which are power sources;
- and
- an electric power controller configured to control electric power transmission of the rotating electric machine, the power storage device and the fuel cell, and
- wherein the controller is further configured to:
- determine that an abnormality has occurred in the fuel cell of a power unit of the plurality of power units, resulting in a determination of an abnormal fuel cell, and based on the determination of the abnormal fuel cell, control an operation of an abnormal rotating electric machine, which is the rotating electric machine having the abnormal fuel cell, wherein the control of the operation of the abnormal rotating electric machine reduces the torque of the abnormal rotating electric machine to zero when a rotation number is equal to or greater than a predetermined rotation number, a torque requirement is smaller than a predetermined torque, and a state of charge is equal to or greater than a predetermined state of charge, and the control of the operation of the abnormal rotating electric machine operates the abnormal rotating electric machine in a regenerative mode when the rotation number is equal to or greater than the predetermined rotation number, the torque requirement is smaller than the predetermined torque, and the state of charge is smaller than the predetermined state of charge, based on the state of charge of the power storage device in the power unit having the abnormal fuel cell, the rotation number of the abnormal rotating electric machine, and the torque requirement of the vehicle.
7 more elements
Dependencies are inferred from the claim text.