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Vibration-restraining control apparatus for vehicle

A control device, vehicle technology, applied in the direction of control device, control drive, vehicle components, etc.

Inactive Publication Date: 2013-01-30
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the technique described in the above-mentioned Patent Document 1, the damping torque is calculated using both the drive torque and the wheel rotation speed as input values ​​regardless of the running state of the vehicle. Therefore, the value detected by the wheel rotation speed sensor and the actual wheel rotation speed In the driving situation where the deviation of the value is large, the vibration damping torque is calculated based on the value that deviates from the actual wheel speed, and there is a problem that the drive torque correction for suppressing the sprung vibration of the vehicle cannot be appropriately performed.

Method used

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  • Vibration-restraining control apparatus for vehicle
  • Vibration-restraining control apparatus for vehicle
  • Vibration-restraining control apparatus for vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0028] figure 1 is a system diagram showing the configuration of the vibration damping control device of Embodiment 1, figure 2 It is a configuration diagram of a vehicle equipped with a vibration damping control device. First, the configuration of the vibration damping control device will be described. The wheel speed sensor 10 detects the speed of each wheel from the number of rotations of each wheel. The accelerator pedal depression amount detection unit 20 detects an accelerator opening APO indicating the depression amount of the accelerator pedal depressed by the driver. The brake operation amount detection unit 30 detects the brake operation amount S b (brake pedal stroke amount, pedaling force, etc.) by the driver.

[0029] The controller 50 outputs control signals to the driving force control device 60 and the braking force control device 70 which are actuators of the vibration damping control device based on the state quantities detected by the sensors. Here, the...

Embodiment 2

[0136] Next, Example 2 will be described. Since the basic configuration is the same as that of Embodiment 1, only the different points will be described. Figure 13 It is a flowchart showing the weighting coefficient setting process of the second embodiment.

[0137] In step S300 - 1 , the operating state of the brake actuator control (VDC, TCS, ABS, EBD, etc.) is acquired. In addition, VDC is an abbreviation of Vehicle Dynamic Control, and is a control for rotating the vehicle (yaw rate, etc.). TCS is the abbreviation of Traction Control System, and it is a control that suppresses slippage caused by excessive torque acting on the drive wheels. ABS is the abbreviation of Anti-lock Braking System, which prevents the wheel from locking up during sudden braking. EBD is the abbreviation of electronically controlled brake force distribution device, which optimizes the front and rear wheel brake force distribution in order to avoid the rear wheel locking during braking. All of t...

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Abstract

Provided is a vibration-restraining control apparatus for a vehicle, wherein prescribed weighting is implemented, on the basis of the driving state of the vehicle, on a first correction torque for restraining vibration of sprung weight of the vehicle on the basis of the wheel speed of the vehicle, and on a second correction torque for restraining vibration of sprung weight of the vehicle on the basis of the braking / driving torque of the vehicle. This enables calculation of vibration-restraining torque according to the driving state.

Description

technical field [0001] The present invention relates to a vibration damping control device for suppressing vibration generated in a vehicle. Background technique [0002] Conventionally, the technique described in Patent Document 1 is known as a technique for calculating a damping torque for suppressing sprung vibration by using drive torque and wheel rotation speed as input values ​​to suppress sprung vibration of a vehicle. [0003] However, in the technique described in the above-mentioned Patent Document 1, the damping torque is calculated using both the drive torque and the wheel rotation speed as input values ​​regardless of the running state of the vehicle. Therefore, the value detected by the wheel rotation speed sensor and the actual wheel rotation speed In a driving situation where the deviation of the value becomes large, the damping torque is calculated based on the value deviated from the actual wheel rotation speed, and there is a problem that the driving torqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/04B60L15/20B60W10/18B60W30/20F16F15/02B60W10/06B60W10/184B60W30/00B60W30/18
CPCB60W10/04F16F15/002Y02T10/7258B60W10/06B60W2710/0666B60W30/20B60W2710/182B60W2720/16B60W2540/12B60L2270/145B60W2540/10B60W10/188B60W10/18B60W2520/28Y02T10/72
Inventor 太田光纪吉泽正彦盐泽裕树小林洋介伊藤明弘
Owner NISSAN MOTOR CO LTD