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US 12,576,720 B2Granted
System and method for operating a vehicle with electric power take-off
AssigneeDana Belgium N.V.
InventorsKorneel Bolle, Stijn Goossens, Bert Hannon, Ariprasaath Chandrasekaran
Life of this patent
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Abstract
Methods and systems for controlling a power take-off and engagement of an electric machine of an electric vehicle are described. In one example, a power take-off and engagement of a disconnect clutch are controlled in response to vehicle speed and tractive effort. A first electric machine is fixable coupled to a gear set of a transmission and the driveline disconnect clutch may selectively couple a second electric machine to the gear set.
Claims20
An electric propulsion system, comprising:
- a first electric machine;
- a second electric machine;
- a transmission, the transmission mechanically coupled to one or more rotatable wheels and the first electric machine;
- a disconnect clutch configured to selectively couple the second electric machine to the transmission;
- a power take-off configured to supply rotational mechanical power to a device;
- a power take-off disconnect clutch configured to selectively couple the second electric machine to the power take-off;
- and
- one or more controllers, the one or more controllers including executable non-transitory executable instructions that cause the one or more controllers to operate the power take-off disconnect clutch and the disconnect clutch.
5 more elements
A method for operating a vehicle, comprising:
- selectively opening and closing a disconnect clutch and a power take-off disconnect clutch that are mechanically coupled to a second electric machine in response to a tractive effort and a vehicle speed;
- and
- propelling the vehicle via a first electric machine.
An electric propulsion system, comprising:
- a first electric machine;
- a second electric machine;
- a transmission, the transmission mechanically coupled to one or more rotatable wheels and the first electric machine;
- a disconnect clutch configured to selectively couple the second electric machine to the transmission;
- a power take-off configured to supply rotational mechanical power to a device;
- a power take-off disconnect clutch configured to selectively couple the second electric machine to the power take-off;
- and
- one or more controllers, the one or more controllers including executable non-transitory executable instructions that cause the one or more controllers to open the disconnect clutch in response to increasing driver demand torque when a vehicle speed is greater than a threshold speed, and additional executable instructions that cause the one or more controllers to open the disconnect clutch in response to increasing driver demand torque when the vehicle speed is less than the threshold speed.
5 more elements
Dependencies are inferred from the claim text.