Electric creep torque control in vehicles having a manual/mechanical transmission
First Claim
Patent Images
1. A vehicle comprising:
- an engine;
an accelerator pedal;
a brake pedal;
a clutch pedal;
a manual transmission having an output shaft;
an electric machine configured to rotate the output shaft when the manual transmission is in neutral; and
a controller programmed to;
auto-stop the engine responsive to the accelerator pedal being released, the brake pedal being depressed, and the clutch pedal being released,responsive to the engine being auto-stopped, the brake pedal being depressed, and creep mode being requested, activate a creep mode, andresponsive to the creep mode being activated, provide creep torque based on position of the brake pedal.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for providing electric creep in a manual transmission vehicle having an accelerator pedal, a brake pedal, and an engine uses an electric motor configured to provide creep torque to a transmission output shaft when the manual transmission is in neutral, the electric creep mode is activated and the engine is auto-stopped. The system may provide forward or reverse creep torque. The system may cancel the electric creep in response to a vehicle door opening, a driver unbuckling a seatbelt, or depressing the accelerator pedal or the clutch pedal, or shifting the manual transmission out of neutral.
11 Citations
19 Claims
-
1. A vehicle comprising:
-
an engine; an accelerator pedal; a brake pedal; a clutch pedal; a manual transmission having an output shaft; an electric machine configured to rotate the output shaft when the manual transmission is in neutral; and a controller programmed to; auto-stop the engine responsive to the accelerator pedal being released, the brake pedal being depressed, and the clutch pedal being released, responsive to the engine being auto-stopped, the brake pedal being depressed, and creep mode being requested, activate a creep mode, and responsive to the creep mode being activated, provide creep torque based on position of the brake pedal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A controller for providing electric creep in a vehicle comprising a manual transmission, an engine, and an electric machine configured to be controlled by accelerator, brake and clutch pedals, the controller configured to:
-
switch off the engine when the electric creep is activated; control the electric machine to provide the electric creep based on extent of depression of the brake pedal; and cancel the electric creep responsive to the clutch pedal being depressed. - View Dependent Claims (11, 12, 13)
-
-
14. A vehicle comprising:
-
an engine; a manual transmission coupled to the engine; a motor configured to power driven wheels of the vehicle; and a controller programmed to auto-stop the engine responsive to accelerator and clutch pedals being released, a brake pedal being depressed, and the transmission being in neutral, and responsive to the engine being auto-stopped and electric creep being requested, power the driven wheels via the motor based on position of the brake pedal. - View Dependent Claims (15, 16, 17, 18, 19)
-
Specification