Vehicle height adjustment device

Patent metadata

Field	Value
Publication number	US-10286744-B2
Application number	US-201715644057-A
Country	US
Kind code	B2
Filing date	Jul 7, 2017
Priority date	Jul 27, 2016
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A vehicle height adjustment device includes: a pressure tank capable of storing air in a compression state; a plurality of vehicle height adjustment units that are provided in correspondence with wheels of a vehicle and individually adjust vehicle heights at the respective wheels by supplying the air from the pressure tank or returning the air to the pressure tank; an information acquisition unit that acquires turn route information during travel of the vehicle; and a control unit that raises the vehicle height at the vehicle height adjustment unit on a turn outer side more than the vehicle height at the vehicle height adjustment unit on a turn inner side such that the vehicle takes a tilt posture on the basis of the turn route information when the vehicle turns.

First claim

What is claimed is:

1. A vehicle height adjustment device comprising:
a pressure tank capable of storing air in a compression state;
a plurality of vehicle height adjustment units that are provided in correspondence with wheels of a vehicle and individually adjust vehicle heights at the wheels by supplying the air from the pressure tank or returning the air to the pressure tank;
an information acquisition unit that acquires turn route information during travel of the vehicle; and
a control unit that raises a vehicle height at a vehicle height adjustment unit of the plurality of vehicle height adjustment units on a turn outer side more than a vehicle height at a vehicle height adjustment unit of the plurality of vehicle height adjustment units on a turn inner side such that the vehicle takes a tilt posture on a basis of the turn route information when the vehicle turns.

2. The vehicle height adjustment device according to claim 1 , wherein the information acquisition unit acquires a turn start position and a turn end position of the vehicle.

3. The vehicle height adjustment device according to claim 1 , wherein the information acquisition unit acquires the turn route information by using map information.

4. The vehicle height adjustment device according to claim 1 , wherein the control unit raises a vehicle height at the vehicle height adjustment unit on a turn outer side, among the plurality of vehicle height adjustment units, more than a vehicle height at the vehicle height adjustment unit on a turn inner side, such that the vehicle takes the tilt posture.

5. The vehicle height adjustment device according to claim 1 , wherein the control unit raises a vehicle height at the vehicle height adjustment unit on a turn outer side, among the plurality of vehicle height adjustment units, more than a standard vehicle height at a time of a non-turn, and maintains a vehicle height at the vehicle height adjustment unit on a turn inner side as the standard vehicle height at the time of the non-turn such that vehicle takes the tilt posture.

6. The vehicle height adjustment device according to claim 1 , wherein the control unit ends vehicle height adjustment of the vehicle during a turn in a case where the vehicle reaches the tilt posture, and maintains the tilt posture according to the vehicle height.

7. The vehicle height adjustment device according to claim 1 , wherein the control unit ends vehicle height adjustment of the vehicle during a turn in a case where a predetermined period elapses after the vehicle height adjustment starts, and maintains the tilt posture according to the vehicle height.

8. The vehicle height adjustment device according to claim 1 , wherein the control unit ends vehicle height adjustment of the vehicle during a turn in a case where the vehicle moves a predetermined distance after the vehicle height adjustment starts, and maintains the tilt posture according to the vehicle height.

9. A vehicle height adjustment device comprising:
a plurality of vehicle height adjustment units that are provided in correspondence with wheels of a vehicle and individually adjust vehicle heights at the respective wheels;
an information acquisition unit that acquires current position information of the vehicle;
a storage unit that stores a position on a map where the vehicle turns and a tilt posture of the vehicle in the position in association with each other; and
a control unit that acquires the tilt posture corresponding to the current position information from the storage unit when the vehicle turns, and raises a vehicle height at a vehicle height adjustment unit of the plurality of vehicle height adjustment units on a turn outer side more than a vehicle height at a vehicle height adjustment unit of the plurality of vehicle height adjustment units on a turn inner side such that the vehicle takes the tilt posture.

10. The vehicle height adjustment device according to claim 9 , wherein the control unit raises a vehicle height at the vehicle height adjustment unit on a turn outer side, among the plurality of vehicle height adjustment units, more than a vehicle height at the vehicle height adjustment unit on a turn inner side, such that the vehicle takes the tilt posture.

11. The vehicle height adjustment device according to claim 9 , wherein the control unit raises a vehicle height at the vehicle height adjustment unit on a turn outer side, among the plurality of vehicle height adjustment units, more than a standard vehicle height at a time of a non-turn, and maintains a vehicle height at the vehicle height adjustment unit on a turn inner side as the standard vehicle height at the time of the non-turn such that vehicle takes the tilt posture.

12. The vehicle height adjustment device according to claim 9 , wherein the control unit ends vehicle height adjustment of the vehicle during a turn in a case where the vehicle reaches the tilt posture, and maintains the tilt posture according to the vehicle height.

13. The vehicle height adjustment device according to claim 9 , wherein the control unit ends vehicle height adjustment of the vehicle during a turn in a case where a predetermined period elapses after the vehicle height adjustment starts, and maintains the tilt posture according to the vehicle height.

14. The vehicle height adjustment device according to claim 9 , wherein the control unit ends vehicle height adjustment of the vehicle during a turn in a case where the vehicle moves a predetermined distance after the vehicle height adjustment starts, and maintains the tilt posture according to the vehicle height.

Assignees

• Aisin Seiki

Inventors

• Kondo Yusuke
• Ogino Atsuto

Classifications

• B60G2500/201

  Air spring system type · CPC title

• B60G2400/50

  Pressure · CPC title

• B60G2400/0511

  Roll angle · CPC title

• B60G2400/106

  longitudinal with regard to vehicle, e.g. braking · CPC title

• B60G2500/30

  Height or ground clearance · CPC title