Method and system for controlling the regenerative braking of a vehicle

Patent metadata

Field	Value
Publication number	US-10128780-B2
Application number	US-201514604213-A
Country	US
Kind code	B2
Filing date	Jan 23, 2015
Priority date	Jan 31, 2014
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A method of and a system for controlling the regenerative braking of a vehicle includes initiating a regenerative braking mode in response to an initiating control input to an accelerator of the vehicle, the initiating control input comprising a reduction in the degree of actuation of the accelerator of the vehicle, modifying a level of regenerative braking in the regenerative braking mode in response to at least one of a further reduction in the degree of actuation of the accelerator, application of a brake of the vehicle, application of a clutch of the vehicle, and a change of gear of the vehicle, and maintaining a modified level of regenerative braking after the additional control input has been terminated.

First claim

What is claimed is:

1. A method of controlling a vehicle comprising:
initiating a level of regenerative braking responsive to a reduction in degree of an accelerator actuation;
modifying the level of regenerative braking to a modified level greater than the level responsive to application of a brake; and
maintaining the modified level after the application of the brake has been terminated until the degree of the accelerator actuation increases.

2. A method according to claim 1 further comprising modulating the level of regenerative braking in response to a change in an operational state of the accelerator or brake.

3. A method according to claim 1 , wherein the level of regenerative braking is proportional to an inferred level of deceleration based on a driver input.

4. A method according to claim 1 , wherein the level of regenerative braking is proportional to a requested level of braking effort.

5. A vehicle comprising:
one or more controllers configured to
initiate a level of regenerative braking responsive to a reduction in degree of an accelerator actuation,
modify the level of regenerative braking to a modified level greater than the level responsive to further reduction in the degree of the accelerator actuation or to application of a brake, and
maintain the modified level after the further reduction in the degree of the accelerator actuation or application of the brake has been terminated until the degree of the accelerator actuation increases.

6. A vehicle according to claim 5 , wherein the one or more controllers are further configured to modulate the level of regenerative braking in response to a change in an operational state of the accelerator or brake.

7. A vehicle according to claim 5 , wherein the level of regenerative braking is proportional to an inferred level of deceleration based on a driver input.

8. A vehicle according to claim 5 , wherein the level of regenerative braking is proportional to a requested level of braking effort.

9. A vehicle comprising:
one or more controllers configured to
initiate a level of regenerative braking responsive to a reduction in degree of an accelerator actuation,
modify the level of regenerative braking to a modified level greater than the level responsive to application of a clutch or to a change in gear, and
maintain the modified level after the application of the clutch or change in the gear has been terminated until the degree of the accelerator actuation increases.

10. A vehicle according to claim 9 , wherein the one or more controllers are further configured to modulate the level of regenerative braking in response to a change in an operational state of the accelerator, clutch or gear.

11. A vehicle according to claim 9 , wherein the level of regenerative braking is proportional to an inferred level of deceleration based on a driver input.

12. A vehicle according to claim 9 , wherein the level of regenerative braking is proportional to a requested level of braking effort.

Assignees

• Ford Global Tech Llc

Inventors

• Crisp Nicholas Dashwood
• Petridis Anthemios Philemon
• Busch Rainer
• Christen Urs

Classifications

• B60W2540/16

  Ratio selector position · CPC title

• B60W2510/0208

  Clutch engagement state, e.g. engaged or disengaged · CPC title

• B60W2710/083

  Torque · CPC title

• B60W30/18127 Primary

  Regenerative braking · CPC title

• B60W2540/12

  Brake pedal position · CPC title