VEHICLE

• US 20130297152A1
• Filed: 01/18/2012
• Published: 11/07/2013
• Est. Priority Date: 01/18/2011
• Status: Active Grant

• Current Assignee: Equos Research Co., Ltd. (Aisin Corp.)
• Original Assignee: Equos Research Co., Ltd. (Aisin Corp.)
• Inventors: Hayashi, Koki, Yamamoto, Shinji, Takakura, Yuji
• Granted Patent: US 8,831,833 B2
• Time in Patent Office: Days
• US Class Current: 701/42
• CPC Class Codes: B60G 17/015 the regulating means comprising electric or electronic elements B60G17/002, B60G17/005 take 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 2300/122 Trikes
• CPC Class Codes: B60G 2300/45 Rolling frame vehicles
• CPC Class Codes: B60G 2400/0533 Yaw acceleration
• CPC Class Codes: B60G 2400/104 lateral or transversal with regard to vehicle
• CPC Class Codes: B60G 2400/204 Vehicle speed
• CPC Class Codes: B62D 9/04 combined with means for inwardly inclining wheels on bends B62D9/02 takes precedence
• CPC Class Codes: B62K 5/025 power-driven
• CPC Class Codes: B62K 5/10 with means for inwardly inclining the vehicle body on bends

Abstract

The vehicle includes a vehicle body having a steering section and a drive section connected together; a steerable wheel which steers the vehicle body; a drive wheel which drives the vehicle body; an inclination actuator apparatus for inclining the steering section or the drive section in a turning direction; a plurality of sensors which detect lateral accelerations; yaw angular velocity detection means; vehicle speed detection means; and a control apparatus which controls the inclination of the vehicle body by controlling the inclination actuator apparatus. The control apparatus performs feedback control on the basis of the lateral accelerations, calculates a link angular velocity predicted value from the derivative value of the yaw angular velocity and the vehicle speed, and controls the inclination of the vehicle body by performing feedforward control while using the calculated link angular velocity predicted value.

Claims

1. A vehicle characterized by comprising:

a vehicle body which includes a steering section and a drive section connected together;

a steerable wheel which is rotatably mounted to the steering section and which steers the vehicle body;

a drive wheel which is rotatably mounted to the drive section and which drives the vehicle body;

an inclination actuator apparatus for inclining the steering section or the drive section in a turning direction;

a plurality of sensors which detect lateral accelerations acting on the vehicle body;

yaw angular velocity detection means for detecting yaw angular velocity of the vehicle body;

vehicle speed detection means for detecting vehicle speed; and

a control apparatus which controls the inclination of the vehicle body by controlling the inclination actuator apparatus,

wherein the control apparatus performs feedback control on the basis of the lateral accelerations detected by the plurality of sensors, calculates a link angular velocity predicted value from a derivative value of the yaw angular velocity detected by the yaw angular velocity detection means and the vehicle speed detected by the vehicle speed detection means, and controls the inclination of the vehicle body by performing feedforward control while using the calculated link angular velocity predicted value.

2. A vehicle according to claim 1, wherein the control apparatus controls the inclination of the vehicle body such that a combined lateral acceleration obtained by combining the lateral accelerations detected by the plurality of sensors becomes zero.

3. A vehicle according to claim 1, wherein the plurality of sensors are lateral acceleration sensors disposed at vertical positions which differ from each other.

4. A vehicle according to claim 2, wherein the plurality of sensors are lateral acceleration sensors disposed at vertical positions which differ from each other.