Information processing device for vehicle and database

• US 9,177,040 B2
• Filed: 12/01/2010
• Issued: 11/03/2015
• Est. Priority Date: 12/01/2010
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Yamada, Yuki
• Primary Examiner(s): NGUYEN, TAN QUANG
• Application Number:
  US13/989,236
• Publication Number:
  US 20130246421A1
• Time in Patent Office: 1,798 Days
• Field of Search: 701/70, 701/32.3, 701/32.4, 701/32.5, 701/33.4, 701/300, 701/93, 701/96
• US Class Current: 1/1
• CPC Class Codes: B60W 2552/00 Input parameters relating to infrastructure
• CPC Class Codes: B60W 2555/60 Traffic rules, e.g. speed limits or right of way
• CPC Class Codes: B60W 2720/106 Longitudinal acceleration
• CPC Class Codes: B60W 30/143 Speed control B60W30/16 takes precedence
• CPC Class Codes: B60W 40/06 Road conditions
• CPC Class Codes: G06F 16/284 Relational databases

Abstract

An electronic control unit (ECU) and a database (DB) of a travel assist device specify and store a deceleration end point of a vehicle on the basis of information relating to an absolute position independent from a structure on the ground. Further, the ECU and the DB of the travel assist device stores a deceleration end area which is an area within a predetermined range from the deceleration end point.

Claims

1. An information processing device for a vehicle comprising:

a memory unit that specifies and stores a deceleration end point of a vehicle, a deceleration start point of the vehicle, and an exit point to the outside of a predetermined range from the deceleration end point of the vehicle on the basis of absolute position information that is information relating to an absolute position independent from a structure on the ground, and stores an area within a predetermined range from the deceleration end point as a deceleration end area,

wherein the memory unit specifies the deceleration end area based on the deceleration end point, and the deceleration start point and the exit point,

wherein when at least one of following distances is equal to or more than the predetermined value;

a distance between the present deceleration end point of the vehicle and the deceleration end point of the deceleration end area of the vehicle that was stored in the past, a distance between the present deceleration start point of the vehicle and the deceleration start point of the deceleration end area of the vehicle that was stored in the past, and a distance between the present exit point and the exit point of the deceleration end area of the vehicle that was stored in the past,

the memory unit stores an area within a predetermined range from the present deceleration end point of the vehicle as a new deceleration end area, and

wherein when the distance between the present deceleration end point of the vehicle and the deceleration end point of the deceleration end area of the vehicle that was stored in the past is less than the predetermined value, the distance between the present deceleration start point of the vehicle and the deceleration start point when the vehicle is toward the deceleration end area that was stored in the past is less than the predetermined value, and the distance between the present exit point of the vehicle and the exit point of the deceleration end area of the vehicle that was stored in the past is equal to or more than the predetermined value,

at least one of when the difference between the vehicle speed in the present deceleration end point of the vehicle and the vehicle speed in the deceleration end point of the deceleration end area of the vehicle that was stored in the past is less than the predetermined value, and when the vehicle speed in the present deceleration end point of the vehicle is in the vicinity of 0 km/h, and

the memory unit does not store the area within the predetermined range from the present deceleration end point of the vehicle as a new deceleration end area.

3. The information processing device for a vehicle according to claim 1,

wherein the absolute position information includes information relating to latitude and longitude.

2. An information processing device for a vehicle comprising:

a memory unit that specifies and stores a deceleration end point of a vehicle on the basis of absolute position information that is information relating to an absolute position independent from a structure on the ground, and stores an area within a predetermined range from the deceleration end point as a deceleration end area,

wherein the memory unit includes the deceleration start point when the vehicle is toward the deceleration end area that was stored in the past, and sets as a reference line, one side that is farthest away from the deceleration end area in a square-shaped area having two sides parallel to an average orientation of the vehicle in each deceleration start point when the vehicle is toward the deceleration end area that was stored in the past.

4. The information processing device for a vehicle according to claim 2,

wherein the absolute position information includes information relating to latitude and longitude.