Output control device for internal combustion engine and output control method for internal combustion engine

• US 8,938,351 B2
• Filed: 04/12/2011
• Issued: 01/20/2015
• Est. Priority Date: 04/13/2010
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Iriyama, Masahiro
• Primary Examiner(s): Vo, Hieu T
• Application Number:
  US13/640,960
• Publication Number:
  US 20130035844A1
• Time in Patent Office: 1,379 Days
• Field of Search: 701/110, 701/102, 701/115, 477/3, 477/15
• US Class Current: 701/110
• CPC Class Codes: B60T 2260/08 Coordination of integrated systems
• CPC Class Codes: B60T 2270/413 Plausibility monitoring, cross check, redundancy
• CPC Class Codes: B60T 7/042 by electrical means, e.g. using travel or force sensors
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2540/12 Brake pedal position
• CPC Class Codes: B60W 2710/0605 Throttle position
• CPC Class Codes: B60W 50/10 Interpretation of driver requests or demands
• CPC Class Codes: F02D 11/105 characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
• CPC Class Codes: F02D 2200/602 Pedal position
• CPC Class Codes: F02D 2250/26 by applying a torque limit
• CPC Class Codes: F02D 29/02 peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
• CPC Class Codes: F02D 41/107 and deceleration
• CPC Class Codes: F02D 41/12 for deceleration F02D41/0005, F02D41/107 take precedence
• CPC Class Codes: F02M 35/10229 the intake system acting as a vacuum or overpressure source for auxiliary devices, e.g. brake systems; Vacuum chambers air storage chamber F02B21/00

Abstract

The present invention concerns an output control device for an internal combustion engine for generating a drive force of a vehicle. The output control device includes a braking request detection sensor for detecting whether or not a braking request operation has been performed, and a controller programmed to limit an output of the internal combustion engine when the braking request operation is started, completely lift output limitation of the internal combustion engine over a predetermined limitation lifting time when the braking request operation is finished and shorten the limitation lifting time when a predetermined condition holds.

Claims

1. An output control device for an internal combustion engine for generating a drive force of a vehicle, comprising:

a braking request detection sensor for detecting whether or not a braking request operation has been performed; and

a controller programmed to;

limit an output of the internal combustion engine when the braking request operation is started; and

completely lift output limitation of the internal combustion engine over a predetermined limitation lifting time when the braking request operation is finished and shorten the limitation lifting time when a predetermined condition holds.

2. The output control device for the internal combustion engine according to claim 1, wherein the controller is further programmed to calculate a braking operation time from the start of the braking request operation and shorten the limitation lifting time more as the braking operation time becomes shorter when the braking request operation is finished.

3. The output control device for the internal combustion engine according to claim 1, wherein the controller is further programmed to shorten the limitation lifting time when there is no more request for the drive force.

4. The output control device for the internal combustion engine according to claim 1, wherein the controller is further programmed to limit the output of the internal combustion engine based on a braking accelerator operation amount more limited than a maximum accelerator operation amount which is an accelerator operation amount when an accelerator pedal is depressed to the end and return from the limitation of the output of the internal combustion engine based on the braking accelerator operation amount to the limitation of the output of the internal combustion engine based on the maximum accelerator operation amount over the predetermined limitation lifting time when the braking request operation is finished.

5. An output control method for an internal combustion engine for generating a drive force of a vehicle, comprising:

detecting whether or not a braking request operation has been performed;

limiting an output of the internal combustion engine when the braking request operation is started; and

completely lifting output limitation of the internal combustion engine over a predetermined limitation lifting time when the braking request operation is finished and shortening the limitation lifting time when a predetermined condition holds.