VEHICLE CONTROL SYSTEM, AND OPERATON DEVICE

• US 20120109485A1
• Filed: 07/07/2009
• Published: 05/03/2012
• Est. Priority Date: 07/07/2009
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Obuchi, Yutaka
• Granted Patent: US 8,483,924 B2
• Time in Patent Office: Days
• US Class Current: 701/72
• CPC Class Codes: B60W 40/11 Pitch movement
• CPC Class Codes: B60W 40/112 Roll movement
• CPC Class Codes: B60W 40/114 Yaw movement
• CPC Class Codes: B60W 40/12 related to parameters of the vehicle itself , e.g. tyre models

Abstract

A vehicle control device capable of obtaining the sufficient effect of vehicle control is provided. A vehicle control device 1 outputs a control signal to a vehicle on the basis of the height of the center of gravity based on the behavior of the vehicle at the time of rolling or pitching or the correlation value correlated with the height of the center of gravity, and the control signal is calculated on the basis of acceleration of the vehicle in which a rolling angle or a pitch angle is reflected. The operation device calculates the height of the center of gravity or the vehicle weight on the basis of acceleration of the vehicle in which the rolling angle or the pitch angle is reflected and calculates a control signal on the basis of the height of the center of gravity or the vehicle weight. Thus, since the vehicle control device 1 can calculate the control signal on the basis of the acceleration of the vehicle in which the rolling angle or the pitch angle is reflected, it is possible to perform accurate vehicle control according to the rolling angle or the pitch angle at the time of rolling or pitching of the vehicle.

Claims

1. A vehicle control device which outputs a control signal of a vehicle on the basis of a height of the center of gravity based on a behavior of the vehicle in a roll state or a pitch state or a correlation value correlated with the height of the center of gravity, comprising:

an arithmetic unit which calculates a curve representing a product of a vehicle weight and a height of a center of gravity of a vehicle on the basis of behavior of the vehicle;

a range restriction unit which superimposes the curve on a line representing a relationship between the vehicle weight and the height of the center of gravity set in advance for the vehicle to restrict the range of the vehicle weight and the height of the center of gravity; and

a selection unit which selects the value of the vehicle weight and the value of the height of the center of gravity from the range restricted by the range restriction unit,

wherein the control signal is calculated on the basis of acceleration of the vehicle in which a rolling angle or a pitch angle is reflected.

2. An operation device which calculates a height of the center of gravity of a vehicle or a correlation value correlated with the height of the center of gravity, comprising:

an arithmetic unit which calculates a curve representing a product of a vehicle weight and a height of a center of gravity of a vehicle on the basis of behavior of the vehicle;

a range restriction unit which superimposes the curve on a line representing a relationship between the vehicle weight and the height of the center of gravity set in advance for the vehicle to restrict the range of the vehicle weight and the height of the center of gravity; and

a selection unit which selects the value of the vehicle weight and the value of the height of the center of gravity from the range restricted by the range restriction unit,

wherein the height of the center of gravity or the correlation value is calculated on the basis of acceleration of the vehicle in which a rolling angle or a pitch angle of the vehicle is reflected.