Vehicle control apparatus

• US 7,853,366 B2
• Filed: 10/28/2008
• Issued: 12/14/2010
• Est. Priority Date: 10/29/2007
• Status: Expired due to Fees

• Current Assignee: Hitachi Astemo Ltd. (Hitachi, Ltd.)
• Original Assignee: Hitachi, Ltd.
• Inventors: Imura, Shinya, Yokoyama, Atsushi, Takahashi, Junya, Yoshida, Tatsuya
• Primary Examiner(s): Tran, Khoi
• Assistant Examiner(s): Figueroa, Jaime
• Application Number:
  US12/259,948
• Publication Number:
  US 20090112404A1
• Time in Patent Office: 777 Days
• Field of Search: 701/1, 701/41, 701/36, 701/37, 701/38, 701/45, 701/70, 340/436, 340/440, 702/142, 280/735
• US Class Current: 701/1
• CPC Class Codes: B60W 30/04 related to roll-over prevention
• CPC Class Codes: B60W 40/10 related to vehicle motion

Abstract

A vehicle control apparatus having a vehicle state quantity detection unit for detecting vehicle state quantity such as a roller angular velocity, a lateral jerk calculation unit for calculating lateral jerk of a vehicle based on the vehicle state quantity, and a control unit for carrying out the vehicle control based on the lateral jerk.

Claims

1. A vehicle control apparatus comprising:

a vehicle state quantity detection unit for detecting a vehicle state quantity;

a lateral jerk calculation unit for calculating a lateral jerk of a vehicle in a lateral vehicle direction based on said vehicle state quantity, said lateral jerk calculation unit estimating said lateral jerk using a transfer function having, as input, a roll angular velocity of the vehicle and, as output, an estimated lateral jerk; and

a control unit for carrying out vehicle control so as to start a vehicle acceleration or deceleration in an anterior-posterior longitudinal direction of the vehicle, end the vehicle acceleration or deceleration in said anterior-posterior longitudinal direction of the vehicle, or make the vehicle acceleration in said anterior-posterior longitudinal direction of the vehicle constant when a value of said estimated lateral jerk is near zero.

2. A vehicle comprising the vehicle control apparatus according to claim 1.

3. A vehicle control apparatus comprising:

a vehicle state quantity detection unit for detecting a vehicle state quantity, including a steering angle of a vehicle;

a lateral jerk calculation unit for calculating a lateral jerk of the vehicle in a lateral vehicle direction based on said vehicle state quantity, said lateral jerk calculation unit estimating said lateral jerk based on said steering angle; and

a control unit for carrying out vehicle control so as to start a vehicle acceleration or deceleration in an anterior-posterior longitudinal direction of the vehicle, end the vehicle acceleration or deceleration in said anterior-posterior longitudinal direction of the vehicle, or make the vehicle acceleration in said anterior-posterior longitudinal direction of the vehicle constant when a value of said lateral jerk is near zero.

4. A vehicle comprising the vehicle control apparatus according to claim 3.