Systems and methods for electric driveline control
AssigneeDana Belgium N.V.
InventorsPeter Deckmyn, Biagio Borretti, Tony Libbrecht
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for reducing vehicle movement during standstill. In one example, a method for a hybrid or electric vehicle may include monitoring a requested torque of an electric machine and a clutch position, predicting a torque at an output shaft by multiplying the requested torque and clutch position, and operating the hybrid or electric vehicle in a default state in response to an indication of a predicted torque exceeding a threshold torque.
Claims18
A method for a hybrid or electric vehicle comprising:
- operating the hybrid or electric vehicle in a running state where a control setting of a driveline controller is selected via a gear shift lever;
- monitoring a requested torque of an electric machine and a clutch position;
- predicting a torque at an output shaft by multiplying the requested torque and clutch position;
- and
- transitioning from operating the hybrid or electric vehicle in the running state to operating in a default state via a default state component that has priority over the control setting of the driveline controller in response to an indication of the predicted torque exceeding a threshold torque.
A method for a vehicle having an electric machine comprising:
- operating the hybrid or electric vehicle in a running state where a control setting of a driveline controller is selected via a gear shift lever;
- monitoring a torque requested by an inverter of the electric machine and a clutch position;
- predicting the torque at an output shaft by multiplying a requested torque and clutch position;
- monitoring a speed of the vehicle;
- deriving an acceleration of the vehicle in response to an indication of the speed exceeding a threshold speed;
- and
- transitioning from operating the vehicle in the running state to operating the vehicle in a default state via a default state component that has priority over the control setting of the driveline controller in response to the indication of at least one of the predicted torque exceeding a threshold torque and the acceleration exceeding a threshold acceleration.
A standstill control system for a vehicle, comprising:
- an electric driveline having an inverter of an electric machine and a clutch;
- a driveline controller communicatively coupled to the electric driveline;
- a vehicle speed sensor coupled to the driveline controller;
- and
- a memory storing executable instructions that, when executed, cause the driveline controller to:
- operate the vehicle in a running state where a control setting of the driveline controller is selected via a shift gear lever;
- monitor a torque requested by the inverter of the electric machine and a position of the clutch;
- predict the torque at an output shaft by multiplying a requested torque and the position of the clutch;
- monitor a speed of the vehicle;
- derive an acceleration of the vehicle in response to an indication of the speed exceeding a threshold speed;
- and
- transition operation of the vehicle from the running state to a default state via a default state component that has priority over the control setting of the driveline controller in response to an indication of at least one of the predicted torque exceeding a threshold torque and the acceleration exceeding a threshold acceleration.
Dependencies are inferred from the claim text.