CONTROL APPARATUS FOR VEHICLE AND CONTROL METHOD FOR VEHICLE

• US 20130253764A1
• Filed: 03/14/2013
• Published: 09/26/2013
• Est. Priority Date: 03/23/2012
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Kikuchi, Hironobu, Hirayama, Katsuhiko
• Granted Patent: US 9,079,579 B2
• Time in Patent Office: Days
• US Class Current: 701/38
• CPC Class Codes: B60G 17/016 characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input B60G17/017 takes precedence
• CPC Class Codes: B60G 17/0195 characterised by the regulation being combined with other vehicle control systems conjoint control of vehicle sub-units including control of suspension systems B60W10/22
• CPC Class Codes: B60G 17/06 Characteristics of dampers , e.g. mechanical dampersB60G17/015 takes precedence
• CPC Class Codes: B60G 2400/102 vertical
• CPC Class Codes: B60G 2500/10 Damping action or damper
• CPC Class Codes: B60T 2260/06 Active Suspension System
• CPC Class Codes: B60T 8/17555 specially adapted for enhancing driver or passenger comfort, e.g. soft intervention or pre-actuation strategies
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/188 hydraulic brakes
• CPC Class Codes: B60W 10/22 including control of suspension systems
• CPC Class Codes: B60W 2510/18 Braking system
• CPC Class Codes: B60W 2720/00 Output or target parameters relating to overall vehicle dynamics
• CPC Class Codes: B60W 30/18 Propelling the vehicle

Abstract

A control apparatus for a vehicle is provided with a plurality of actuators which perform sprung vibration suppression control, a vertical acceleration sensor configured to detect sprung vertical acceleration, and a plurality of actuator attitude control units which control the respective actuators such that the vertical acceleration detected by the vertical acceleration sensor becomes vertical acceleration corresponding to a target sprung state.

Claims

1. A control apparatus for a vehicle comprising:

a plurality of actuators configured to perform sprung vibration suppression control,

a vertical acceleration sensor configured to detect a sprung vertical acceleration, and

a plurality of actuator attitude control units configured to control the respective actuators such that the vertical acceleration detected by the vertical acceleration sensor becomes a vertical acceleration corresponding to a target sprung state, wherein

the plurality of actuators are a driving power source, a friction brake, and a damping force variable shock absorber of a vehicle, and

the plurality of actuator attitude control units are a driving power source attitude control unit, a friction brake attitude control unit, and a damping force control unit, and

the driving power source attitude control unit suppresses a bounce movement and a pitch movement of a vehicle body.

2. The control apparatus for a vehicle according to claim 1, wherein the driving power source attitude control unit has a limit value for limiting a driving power source attitude control amount to a predetermined value.

3. The control apparatus for a vehicle according to claim 1, wherein the friction brake attitude control unit suppresses the pitch movement of the vehicle body.

4. The control apparatus for a vehicle according to claim 1, wherein the friction brake attitude control unit has a limit value for limiting a brake attitude control amount to a predetermined value such that a change rate of deceleration of the vehicle body becomes a predetermined value or less.

5. A control apparatus for a vehicle, comprising:

a sensor configured to detect sprung vertical acceleration, and

a controller configured to control a plurality of actuators configured to perform sprung vibration suppression control, such that a vertical acceleration detected by the sensor becomes a vertical acceleration corresponding to a target sprung state, and

the controller configured to control the plurality of actuators configured to suppress a bounce movement and a pitch movement of a vehicle body.

6. A control method for a vehicle which includes a sensor configured to detect sprung vertical acceleration, comprising a step of controlling, by a controller, a plurality of actuators configured to perform sprung vibration suppression control, such that a vertical acceleration detected by the sensor becomes a vertical acceleration corresponding to a target sprung state, and a step of controlling, by the controller, the plurality of actuators configured to suppress a bounce movement and a pitch movement of a vehicle body.