VIBRATION-DAMPING CONTROLLING APPARATUS OF VEHICLE

• US 20110266760A1
• Filed: 10/31/2008
• Published: 11/03/2011
• Est. Priority Date: 10/31/2008
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Itabashi, Kaiji
• Application Number:
  US13/054,884
• Publication Number:
  US 20110266760A1
• Time in Patent Office: Days
• US Class Current: 280/5.507
• CPC Class Codes: B60L 15/2054 by controlling transmissions or clutches
• CPC Class Codes: B60L 2270/145 Structure borne vibrations
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60W 2520/28 Wheel speed
• CPC Class Codes: B60W 30/188 Controlling power parameters of the driveline, e.g. determining the required power
• CPC Class Codes: F02D 2041/141 using a feed-forward control element
• CPC Class Codes: F02D 2200/1004 Estimation of the output torque
• CPC Class Codes: F02D 2200/501 Vehicle speed
• CPC Class Codes: F02D 2250/18 Control of the engine output torque
• CPC Class Codes: F02D 41/021 Introducing corrections for particular conditions exterior to the engine conjoint control of vehicle sub-units for propelling the vehicle B60W30/18
• CPC Class Codes: F02D 41/0225 in relation with the gear ratio or shift lever position
• CPC Class Codes: F02D 41/1402 Adaptive control
• CPC Class Codes: F02D 41/1498 measuring engine roughness
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility

Abstract

A vibration-damping controlling apparatus of a vehicle for suppressing vibration including a component in a pitch direction or in a bounce direction occurring in the vehicle by an input from a road surface to wheels of the vehicle by controlling driving force of the vehicle is provided with a setting means that sets a vibration-damping control compensation amount by feedback control based on a wheel speed of the wheels of the vehicle and a driving force controlling means that controls driving force of a power source for travel of the vehicle so as to suppress amplitude of the vibration based on the vibration-damping control compensation amount and changes the vibration-damping control compensation amount based on a state of the vehicle, so that the vibration-damping controlling apparatus of the vehicle can execute appropriate vibration-damping control corresponding to the state of the vehicle.

Claims

1. A vibration-damping controlling apparatus of a vehicle for suppressing vibration including a component in a pitch direction or in a bounce direction occurring in the vehicle by an input from a road surface to a wheel of the vehicle by controlling driving force of the vehicle, comprising:

a setting unit that sets a vibration-damping control compensation amount by feedback control based on a wheel speed of the wheel of the vehicle; and

a driving force controlling unit that controls driving force of a power source for travel of the vehicle so as to suppress amplitude of the vibration based on the vibration-damping control compensation amount, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on a state of the vehicle.

2. The vibration-damping controlling apparatus of the vehicle according to claim 1, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on a vehicle speed of the vehicle.

3. The vibration-damping controlling apparatus of the vehicle according to claim 1, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on a gear position of a transmission loaded on the vehicle.

4. The vibration-damping controlling apparatus of the vehicle according claim 1, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on an output rotational speed of the power source for travel.

5. The vibration-damping controlling apparatus of the vehicle according to claim 1, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on requested driving force to the vehicle.

6. The vibration-damping controlling apparatus of the vehicle according to claim 1, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on a driving state of a transmission loaded on the vehicle.

7. The vibration-damping controlling apparatus of the vehicle according to claim 1, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on an allowable driving force variable value of the power source for travel.

8. The vibration-damping controlling apparatus of the vehicle according to claim 1, wherein

the power source for travel is a diesel engine, and

the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on an allowable fuel injection amount of the power source for travel.

9. The vibration-damping controlling apparatus of the vehicle according to claim 1, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount by setting a control gain according to a state of the vehicle for the vibration-damping control compensation amount and multiplying the control gain by the vibration-damping control compensation amount.

10. The vibration-damping controlling apparatus of the vehicle according to claim 1, further comprising:

a limiting unit that limits the vibration-damping control compensation amount according to a state of the power source for travel of the vehicle.

11. The vibration-damping controlling apparatus of the vehicle according to claim 10, wherein the vibration-damping controlling apparatus limits the vibration-damping control compensation amount based on an allowable driving force variable value of the power source for travel.

12. The vibration-damping controlling apparatus of the vehicle according claim 10, wherein the vibration-damping controlling apparatus limits the vibration-damping control compensation amount when the power source for travel is cold.

13. The vibration-damping controlling apparatus of the vehicle according to claim 10, wherein the vibration-damping controlling apparatus limits the vibration-damping control compensation amount based on a deviation between a set idle rotational speed and an actual output rotational speed of the power source for travel in an idle operation state of the vehicle.

14. The vibration-damping controlling apparatus of the vehicle according to claim 10, wherein

the power source for travel is a diesel engine, and

the vibration-damping controlling apparatus limits the vibration-damping control compensation amount based on an allowable fuel injection amount of the power source for travel.

15. The vibration-damping controlling apparatus of the vehicle according to claim 10, wherein

the power source for travel is a diesel engine, and

the vibration-damping controlling apparatus limits the vibration-damping control compensation amount based on a deviation between a set idle fuel injection amount and an actual fuel injection amount of the power source for travel in an idle operation state of the vehicle.

17. The vibration-damping controlling apparatus of the vehicle according to claim 2, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on a gear position of a transmission loaded on the vehicle.

18. The vibration-damping controlling apparatus of the vehicle according to claim 2, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on an output rotational speed of the power source for travel.

19. The vibration-damping controlling apparatus of the vehicle according to claim 3, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on an output rotational speed of the power source for travel.

20. The vibration-damping controlling apparatus of the vehicle according to claim 2, wherein the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on requested driving force to the vehicle.

16. A vibration-damping controlling apparatus of a vehicle for suppressing vibration occurring in the vehicle by an input from a road surface to a wheel of the vehicle by controlling driving force of the vehicle, comprising:

a setting unit that sets a vibration-damping control compensation amount for suppressing the vibration based on an actual measured value related to the vibration; and

a driving force controlling unit that controls driving force of a power source for travel of the vehicle according to the vibration-damping control compensation amount, wherein

the vibration-damping controlling apparatus changes the vibration-damping control compensation amount based on a state of the vehicle.