Vehicle speed pattern display device, program used therefor, running test method, and auto-driving device

• US 10,013,819 B2
• Filed: 11/23/2016
• Issued: 07/03/2018
• Est. Priority Date: 12/10/2015
• Status: Active Grant

• Current Assignee: Horiba Limited
• Original Assignee: Horiba Limited
• Inventors: Sugihara, Yoshifumi
• Primary Examiner(s): Zanelli, Michael J
• Application Number:
  US15/359,834
• Publication Number:
  US 20170169629A1
• Time in Patent Office: 587 Days
• CPC Class Codes: G01M 17/00 Testing of vehicles testing fluid tightness G01M3/00; testing elastic properties of bodies or chassis, e.g. torsion-testing, G01M5/00; testing alignment of vehicle headlight devices G01M11/06; testing of engines G01M15/00
• CPC Class Codes: G01M 17/007 Wheeled or endless-tracked vehicles G01M17/08 takes precedence
• CPC Class Codes: G01M 17/0072 the wheels of the vehicle co-operating with rotatable rolls G01M17/022, G01M17/045, G01M17/065 take precedence
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/0825 using optical means

Abstract

To make it possible to achieve a run under a desired condition within a predetermined allowable range, a vehicle speed pattern display device displaying upper and lower limit speed patterns and set for a predetermined prescribed speed pattern on a graph having one axis representing a vehicle speed and the other axis representing time or a running distance is adapted to display a target speed pattern different from the prescribed speed pattern on the graph.

Claims

1. A vehicle speed pattern display device adapted to display on a graph having an axis representing vehicle speed and another axis representing time or running distance

upper and lower limit speed pattern traces set to define a tolerance band for a prescribed speed pattern trace, and

a target speed pattern trace different than the prescribed speed pattern trace, wherein the target speed pattern trace corresponds to a driving mode targeted by a user or is calculated from the prescribed speed pattern trace.

2. The vehicle speed pattern display device according to claim 1, wherein

the target speed pattern trace is selected in accordance with the driving mode and is set such that at least one of an amount of exhaust gas, an amount of carbon dioxide contained in the exhaust gas, drivability, effectiveness of a running test result, and a running index obtained by combining them meets a desired condition.

3. The vehicle speed pattern display device according to claim 1, wherein

the target speed pattern trace is derived from actual vehicle speeds of a vehicle acquired from a running test of the vehicle, or obtained by correcting the actual vehicle speeds.

4. A running test method comprising:

driving a vehicle to test within a speed range defined by upper and lower limit speed pattern traces that are set as a tolerance band for a prescribed speed pattern trace,

setting a target speed pattern trace different than the prescribed speed pattern trace, wherein the target speed pattern trace corresponds to a driving mode targeted by a user or is calculated from the prescribed speed pattern trace; and

displaying the target speed pattern trace on a display.

5. An auto-driving device comprising:

one or more controllers adapted to drive a vehicle

within a speed range defined by upper and lower limit speed pattern traces that are set for a prescribed speed pattern trace, and

in accordance with a target speed pattern trace different than the prescribed speed pattern trace, wherein the target speed pattern trace corresponds to a driving mode targeted by a user or is calculated from the prescribed speed pattern trace.

6. A non-transitory computer readable program product for a vehicle speed pattern display device including instructions that when executed by a computer cause the vehicle speed pattern display device to display on a graph having an axis representing vehicle speed and another axis representing time or running distance

upper and lower limit speed pattern traces set to define a tolerance band for a prescribed speed pattern trace, and

a target speed pattern trace different than the prescribed speed pattern trace, wherein the target speed pattern trace corresponds to a driving mode targeted by a user or is calculated from the prescribed speed pattern trace.