Information system for automotive, on-vehicle device and server device

• US 9,645,969 B2
• Filed: 12/28/2012
• Issued: 05/09/2017
• Est. Priority Date: 12/29/2011
• Status: Active Grant

• Current Assignee: Clarion Co., Ltd. (Faurecia SA)
• Original Assignee: Clarion Co., Ltd. (Faurecia SA)
• Inventors: Tagawa, Shinya, Mutou, Keisuke, Sugimoto, Mika
• Primary Examiner(s): Tissot, Adam
• Assistant Examiner(s): SMITH, AARON C
• Application Number:
  US13/730,683
• Publication Number:
  US 20130173084A1
• Time in Patent Office: 1,593 Days
• Field of Search: 701119, 701123, 3409951
• CPC Class Codes: G01C 21/3407 specially adapted for specific applications
• CPC Class Codes: G01C 21/3469 Fuel consumption; Energy use; Emission aspects
• CPC Class Codes: G06F 17/00 Digital computing or data processing equipment or methods, specially adapted for specific functions information retrieval, database structures or file system structures therefor G06F16/00
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/085 using electronic data carriers
• CPC Class Codes: G08G 1/0112 from the vehicle, e.g. floating car data [FCD]
• CPC Class Codes: G08G 1/0129 for creating historical data or processing based on historical data
• CPC Class Codes: G08G 1/096827 where the route is computed onboard
• CPC Class Codes: G08G 1/096844 where the complete route is dynamically recomputed based on new data
• CPC Class Codes: G08G 1/0969 having a display in the form of a map
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

An information system for automotive includes a plurality of on-vehicle devices each installed in a vehicle and a server device connected with the on-vehicle devices via a communication network. The plurality of on-vehicle devices each include an acceleration/deceleration change detection unit that detects an acceleration/deceleration change of the vehicle equipped with the on-vehicle device and a transmission unit that transmits acceleration/deceleration information pertaining to the detected acceleration/deceleration change. The server device includes a reception unit that receives the acceleration/deceleration information, a statistical parameter calculating unit that calculates statistical parameters to be used to estimate an extent of energy consumption or energy regeneration based upon the received acceleration/deceleration information, and an estimating unit for estimating the extent of energy consumption or energy regeneration based upon the calculated statistical parameters.

Claims

1. An on-vehicle device installed in a vehicle, comprising:

a processor and associated memory storing a program that, when executed, causes the processor to carry out;

an acceleration/deceleration change detection processing that detects an acceleration/deceleration change of the vehicle; and

a transmission processing that transmits acceleration/deceleration information pertaining to the acceleration/deceleration change detected by the acceleration/deceleration change detection processing, wherein the acceleration/deceleration change detection processing;

designates a position of the vehicle at which the acceleration/deceleration change was last detected as an origin point;

calculates a hypothetical cumulative traveling distance of the vehicle when the vehicle hypothetically travels from the origin point to a current position at a constant acceleration/deceleration rate;

calculates an actual cumulative traveling distance of the vehicle from the origin point to the current position; and

designates the current position as an equivalent point at which the acceleration/deceleration change is virtually detected if an absolute difference between the hypothetical cumulative traveling distance and the actual cumulative traveling distance is equal to or greater than a predetermined value, and wherein

the transmission processing further transmits the acceleration/deceleration information pertaining to the equivalent point designated by the acceleration/deceleration change detection processing.

2. An on-vehicle device according to claim 1, wherein:

the acceleration/deceleration change detection processing detects the acceleration/deceleration change when the vehicle has shifted from an accelerating state to a decelerating state or from a decelerating state to an accelerating state.

3. An on-vehicle device according to claim 1, wherein:

the acceleration/deceleration change detection processing detects the acceleration/deceleration change when an extent of the acceleration/deceleration change is equal to or greater than a predetermined value.

4. An on-vehicle device according to claim 1, wherein:

when a ratio of a difference between a current average traveling speed of the vehicle that is currently calculated and a previous average traveling speed of the vehicle that is previously calculated to the previous average traveling speed is equal to or less than a predetermined ratio, detection of the acceleration/deceleration change by the acceleration/deceleration change detection processing is prohibited; and

the predetermined ratio is altered based upon a number of times the acceleration/deceleration change detection processing has detected the acceleration/deceleration change during a predetermined length of time.

5. An on-vehicle device according to claim 1, wherein:

the transmission processing transmits information indicating a speed or an acceleration/deceleration rate of the vehicle, a time point and a position of the vehicle, all measured when the acceleration/deceleration change detection processing detects the acceleration/deceleration change, as the acceleration/deceleration information.