SYSTEM AND METHOD FOR CONTROLLING THE ENGINE OF A VEHICLE

• US 20120010797A1
• Filed: 07/07/2010
• Published: 01/12/2012
• Est. Priority Date: 07/07/2010
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH, Robert Bosch LLC (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Luo, Yun, Hoetzer, Dieter
• Granted Patent: US 8,296,030 B2
• Time in Patent Office: Days
• US Class Current: 701/70
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: F02N 11/0837 Environmental conditions thereof, e.g. traffic, weather or road conditions
• CPC Class Codes: F02N 2200/125 Information about other vehicles, traffic lights or traffic congestion
• CPC Class Codes: G08G 1/0962 having an indicator mounted inside the vehicle, e.g. giving voice messages
• CPC Class Codes: G08G 1/09626 where the origin of the information is within the own vehicle, e.g. a local storage device, digital map
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

A system for controlling an engine of a vehicle. In one embodiment, the system includes at least one monitoring device mounted on the vehicle, a controller in electronic communication with the at least one monitoring device, and a computer readable memory storing instructions executed by the controller. The instructions cause the controller to determine a current driving path of the vehicle based on data received from the at least one monitoring device, to detect a traffic congestion ahead of the vehicle in the current driving path based on data received from the at least one monitoring device, and to determine an alternative driving path of the vehicle based on data received from the at least one monitoring device. The instructions further cause the controller to calculate, using a first statistical model, a first probability that the traffic congestion will not move within a defined time period, and to stop the engine before the vehicle comes to a full stop when the first probability is greater than a first threshold.

Claims

1. A system for controlling an engine of a vehicle, the system comprising:

at least one monitoring device mounted on the vehicle;

a controller in electronic communication with the at least one monitoring device; and

a computer readable memory storing instructions that, when executed by the controller, cause the controller to;

determine a current driving path of the vehicle based on data received from the at least one monitoring device,

detect traffic congestion ahead of the vehicle in the current driving path based on data received from the at least one monitoring device,

determine an alternative driving path of the vehicle based on data received from the at least one monitoring device,

calculate, using a first statistical model, a first probability that the traffic congestion will not move within a defined time period, and

stop the engine before the vehicle comes to a full stop when the first probability is greater than a first threshold.

2. The system of claim 1, wherein the computer readable memory further stores instructions for a driving path detection module that, when executed by the controller, determines a driving path of the vehicle by evaluating positions of a plurality of obstacles and an automatic vehicle detection module that, when executed by the controller, recognizes a preceding vehicle and calculates a longitudinal distance between the vehicle and the preceding vehicle, where the automatic vehicle detection module and the driving path detection module determine the current driving path and the alternative driving path of the vehicle.

3. The system of claim 2, wherein the computer readable memory further stores instructions for a traffic jam detection module that, when executed by the controller, determines traffic congestion and whether the vehicle will come to a full stop because of the traffic congestion-based on the longitudinal distance between the vehicle and a preceding vehicle and movement of the preceding vehicle within the current driving path.

4. The system of claim 1, wherein the computer readable memory further stores instructions for a lane marking detection module that recognizes a driving lane and neighboring lanes, a vehicle distance measurement module that calculates a distance between the vehicle and a preceding vehicle located at an end of traffic congestion, and a longitudinal distance control module that uses information from the lane marking detection module and the vehicle distance measurement module and determines whether brakes of the vehicle should be applied throughout a deceleration until the vehicle reaches a complete stop behind the traffic congestion.

5. The system of claim 1, wherein the computer readable memory further stores instructions that, when executed by the controller, stop the engine when a traffic jam detection module determines that the vehicle will come to a complete stop because of traffic congestion, when a longitudinal distance control module determines that brakes should be applied throughout a deceleration of the vehicle, and when the first probability that the traffic congestion will not move within a defined time period is greater than the first threshold.

6. The system of claim 1, wherein the computer readable memory further stores instructions that, when executed by the controller, restart the engine when the vehicle is stopped and a second statistical model determines that a second probability that the traffic congestion will move within a second defined time period is greater than a second threshold.

7. The system of claim 1, wherein the computer readable memory further stores instructions for a cross traffic detection module that monitors cross traffic and indicates whether the driving path of the vehicle is clear, and wherein the first statistical model determines the first probability based at least in part on an output from the cross traffic detection module.

8. The system of claim 1, wherein the computer readable memory further stores instructions for a Traffic Sign Detection Module that automatically recognizes at least one traffic sign, and wherein the first statistical model determines the first probability based at least in part on an output from the Traffic Sign Detection Module.

9. The system of claim 1, wherein the computer readable memory further stores instructions for a pedestrian light detection module that recognizes changes in a pedestrian light signal, and wherein the first statistical model determines the first probability based at least in part on an output from the pedestrian light detection module.

10. The system of claim 1, wherein the computer readable memory further stores instructions for a drive pattern and location module that records history of a traffic pattern and a specific location of the vehicle in a memory of the controller, and wherein the first statistical model determines the first probability based at least in part on an output from the drive pattern and location module.

11. The system of claim 1, wherein the at least one monitoring device includes a camera.

12. The system of claim 11, wherein the camera includes at least one of a monocular camera module and a binocular camera module.

13. A system for controlling an engine of a vehicle, the system comprising:

a camera mounted on the vehicle; and

a controller in electronic communication with the camera;

a computer readable memory storing instructions that, when executed by the controller, cause the controller to;

stop the engine of the vehicle based on data received from the camera,

determine a current driving path of the vehicle based on data received from the camera,

detect a traffic congestion ahead of the vehicle in the current driving path based on data received from the camera,

calculate, using a statistical model, a probability that the traffic congestion will begin moving within a defined time period, and

restart the engine of the vehicle, when the probability is greater than a threshold.