Method and control arrangement for changing an activation state for a power take-off

A control arrangement for changing an activation state of a power take-off in a vehicle, the vehicle comprising a power source for propelling the vehicle, wherein the activation state of the PTO is either an activated state, during which the PTO is configured to transfer a torque between the vehicle's power source and an auxiliary load, or a deactivated state, during which no torque is transferred by the PTO between the vehicle's power source and the auxiliary load, and wherein the activation state of the PTO is changed by engaging or disengaging a clutch of the PTO, respectively, the control arrangement being configured to, when the power source is connected to drive wheels of the vehicle, and when the activation state of the PTO is to be changed:

• determine an anticipated torque change at the drive wheels of the vehicle resulting from changing the activation state of the PTO;
• and
• control the clutch of the PTO in order to control a rate of change of torque transferred between the vehicle's power source and the auxiliary load during the change of the activation state of the PTO, wherein control of the clutch of the PTO is based on the anticipated torque change at the drive wheels of the vehicle such that the rate of change of torque transferred between the vehicle's power source and the auxiliary load during the change of the activation state of the PTO is reduced when the torque change at the drive wheels of the vehicle exceeds a second torque change limit.

A vehicle comprising a control arrangement for changing an activation state of a power take-off in a vehicle, the vehicle comprising a power source for propelling the vehicle, wherein the activation state of the PTO is either an activated state, during which the PTO is configured to transfer a torque between the vehicle's power source and an auxiliary load, or a deactivated state, during which no torque is transferred by the PTO between the vehicle's power source and the auxiliary load, and wherein the activation state of the PTO is changed by engaging or disengaging a clutch of the PTO, respectively, the control arrangement being configured to, when the power source is connected to drive wheels of the vehicle, and when the activation state of the PTO is to be changed:

• determine an anticipated torque change at the drive wheels of the vehicle resulting from changing the activation state of the PTO;
• and
• control the clutch of the PTO in order to control a rate of change of torque transferred between the vehicle's power source and the auxiliary load during the change of the activation state of the PTO, wherein control of the clutch of the PTO is based on the anticipated torque change at the drive wheels of the vehicle such that the rate of change of torque transferred between the vehicle's power source and the auxiliary load during the change of the activation state of the PTO is reduced when the torque change at the drive wheels of the vehicle exceeds a second torque change limit.

A computer program product comprising a computer program code stored on a non-transitory computer-readable medium, said computer program product used for changing an activation state of a power take-off in a vehicle, the vehicle comprising a power source for propelling the vehicle, wherein the activation state of the PTO is either an activated state, during which the PTO is configured to transfer a torque between the vehicle's power source and an auxiliary load, or a deactivated state, during which no torque is transferred by the PTO between the vehicle's power source and the auxiliary load, and wherein the activation state of the PTO is changed by engaging or disengaging a clutch of the PTO, respectively, said computer program code comprising computer instructions to cause one or more control devices to perform the following operations when the power source is connected to drive wheels of the vehicle, and when the activation state of the PTO is to be changed:

• determine an anticipated torque change at the drive wheels of the vehicle resulting from changing the activation state of the PTO;
• and
• control the clutch of the PTO in order to control a rate of change of torque transferred between the vehicle's power source and the auxiliary load during the change of the activation state of the PTO, wherein control of the clutch of the PTO is based on the anticipated torque change at the drive wheels of the vehicle such that the rate of change of torque transferred between the vehicle's power source and the auxiliary load during the change of the activation state of the PTO is reduced when the torque change at the drive wheels of the vehicle exceeds a second torque change limit.