Method and system for controlling vehicle deceleration in an adaptive speed control system based on vehicle speed

• US 6,604,043 B2
• Filed: 11/26/2001
• Issued: 08/05/2003
• Est. Priority Date: 12/22/1999
• Status: Expired due to Fees

• Current Assignee: SeeSaw Foundation
• Original Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Inventors: Rahaim, Sam G., Friedrich, Mark Peter, Sielagoski, Gerald L.
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Hernandez, Olga
• Application Number:
  US09/995,286
• Publication Number:
  US 20020038176A1
• Time in Patent Office: 617 Days
• Field of Search: 701/96, 701/93, 180/170, 303/121, 303/122.05
• US Class Current: 701/96
• CPC Class Codes: B60K 31/0008 including means for detecting potential obstacles in vehicle path
• CPC Class Codes: B60T 2201/02 Active or adaptive cruise control system; Distance control
• CPC Class Codes: B60W 2720/106 Longitudinal acceleration
• CPC Class Codes: B60W 30/16 Control of distance between vehicles, e.g. keeping a distance to preceding vehicle

Abstract

In an adaptive speed control system for a vehicle, a method and system for controlling vehicle deceleration are provided. The method includes determining a speed of the vehicle, and setting a maximum allowed vehicle deceleration based on the vehicle speed determined. The system includes a receiver capable of receiving an input signal indicative of a speed of the vehicle, and a controller capable of setting a maximum allowed vehicle deceleration based on the vehicle speed.

Claims

1. In an adaptive speed control system for a vehicle, a method for controlling vehicle deceleration, the method comprising:

determining a speed of the vehicle; and

setting a maximum allowed vehicle deceleration based on the vehicle speed determined, wherein setting the maximum allowed vehicle deceleration comprises decreasing the maximum allowed vehicle deceleration as the vehicle speed increases.

2. In an adaptive speed control system for a vehicle, a method for controlling vehicle deceleration, the method comprising:

determining a speed of the vehicle; and

setting a maximum allowed vehicle deceleration based on the vehicle speed determined, wherein setting the maximum allowed vehicle deceleration comprises increasing the maximum allowed vehicle deceleration as the vehicle speed decreases.

3. In an adaptive speed control system for a vehicle, a method for controlling vehicle deceleration, the method comprising:

determining a speed of the vehicle; and

setting a maximum allowed vehicle deceleration based on the vehicle speed determined, wherein the maximum allowed vehicle deceleration varies in a range between about 0.2 g and 0.3 g.

4. In an adaptive speed control system for a vehicle, a method for controlling vehicle deceleration, the method comprising:

determining a speed of the vehicle; and

setting a maximum allowed vehicle deceleration based on the vehicle speed determined, wherein the maximum allowed vehicle deceleration is an exponential function of the vehicle speed.

5. The method of claim 4 wherein the maximum allowed vehicle deceleration is defined by the equation:

6. In an adaptive speed control system for a vehicle, a system for controlling vehicle deceleration, the system comprising:

a receiver for receiving an input signal indicative of a speed of the vehicle; and

a controller for setting a maximum allowed vehicle deceleration based on the vehicle speed, wherein, to set the maximum allowed vehicle deceleration, the controller is operative to decrease the maximum allowed vehicle deceleration as the vehicle speed increases.

7. In an adaptive speed control system for a vehicle, a system for controlling vehicle deceleration, the system comprising:

a receiver for receiving an input signal indicative of a speed of the vehicle; and

a controller for setting a maximum allowed vehicle deceleration based on the vehicle speed, wherein, to set the maximum allowed vehicle deceleration, the controller is operative to increase the maximum allowed vehicle deceleration as the vehicle speed decreases.

8. In an adaptive speed control system for a vehicle, a system for controlling vehicle deceleration, the system comprising:

a receiver for receiving an input signal indicative of a speed of the vehicle; and

a controller for setting a maximum allowed vehicle deceleration based on the vehicle speed, wherein the maximum allowed vehicle deceleration varies in a range between about 0.2 g and 0.3 g.

9. In an adaptive speed control system for a vehicle, a system for controlling vehicle deceleration, the system comprising:

a receiver for receiving an input signal indicative of a speed of the vehicle; and

a controller for setting a maximum allowed vehicle deceleration based on the vehicle speed, wherein the maximum allowed vehicle deceleration is an exponential function of the vehicle speed.

10. The system of claim 9 wherein the maximum allowed vehicle deceleration is defined by the equation: