SYSTEM AND METHOD OF CONTROLLING VEHICLE DRIVING

• US 20170072961A1
• Filed: 11/11/2015
• Published: 03/16/2017
• Est. Priority Date: 09/16/2015
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Yoon, Young Min
• Granted Patent: US 9,988,051 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60W 10/02 including control of driveline clutches
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 2030/18081 With torque flow from driveshaft to engine, i.e. engine being driven by vehicle
• CPC Class Codes: B60W 2030/1809 Without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
• CPC Class Codes: B60W 2050/0096 Control during transition between modes
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2710/0644 Engine speed
• CPC Class Codes: B60W 30/18072 Coasting
• CPC Class Codes: B60W 50/0098 Details of control systems ensuring comfort, safety or stability not otherwise provided for
• CPC Class Codes: B60W 50/06 Improving the dynamic response of the control system, e.g. improving the speed of regulation or avoiding hunting or overshoot
• CPC Class Codes: Y02T 10/60 Other road transportation technologies with climate change mitigation effect

Abstract

A system and method of controlling vehicle driving is provided to mitigate a delay in vehicle acceleration when a sailing mode is released. The method includes when a sailing mode is operated, disengaged a clutch and adjusting an engine speed to correspond to a rotational speed of the clutch. Additionally, the clutch is engaged based on whether the sailing mode is released.

Claims

1. A method of controlling vehicle driving, comprising:

performing, by a controller, a follow-up control in which, when a sailing mode is operated, a clutch is disengaged and an engine speed is adjusted to correspond to a rotational speed of the clutch; and

performing, by the controller, an engagement control in which whether the clutch is engaged is executed based on whether the sailing mode is released.

2. The method according to claim 1, wherein, in the performing follow-up control, a drive shaft clutch is disengaged, and the engine speed is adjusted to correspond to a clutch rotational speed at a current target shift stage.

3. The method according to claim 1, wherein, in the performing engagement control, when the sailing mode is released, the clutch is operated to be engaged while slipping.

4. The method according to claim 1, wherein, in the performing engagement control, when the sailing mode is maintained, the engine speed is adjusted to correspond to a clutch rotational speed at a current target shift stage while the clutch is maintained in a released state.

5. The method according to claim 1, further comprising:

receiving, by the controller, an operational signal of an accelerator pedal;

determining, by the controller, whether the sailing mode is operated or released; and

engaging or disengaging, by the controller, the clutch using clutch actuators.

6. A system of controlling vehicle driving, comprising:

a memory configured to store program instructions; and

a processor configured to execute the program instructions, the program instructions when executed configured to;

disengage a clutch when a sailing mode is operated and adjust an engine speed to correspond to a rotational speed of the clutch; and

engage the clutch based on whether the sailing mode is released.

7. The system according to claim 6, wherein the program instructions when executed are further configured to:

disengage a drive shaft clutch and adjust the engine speed to correspond to a clutch rotational speed at a current target shift stage.

8. The according to claim 6, wherein the program instructions when executed are further configured to:

engaging the clutch when the sailing mode is released while slipping.

9. The according to claim 6, wherein the program instructions when executed are further configured to:

when the sailing mode is maintained, adjust the engine speed to correspond to a clutch rotational speed at a current target shift stage while the clutch is maintained in a released state.

10. The according to claim 6, wherein the program instructions when executed are further configured to:

receive an operational signal of an accelerator pedal;

determine whether the sailing mode is operated or released; and

engage or disengage the clutch using clutch actuators.