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

Patent metadata

Field	Value
Publication number	US-10013819-B2
Application number	US-201615359834-A
Country	US
Kind code	B2
Filing date	Nov 23, 2016
Priority date	Dec 10, 2015
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

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.

First claim

What is claimed is:

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.

Assignees

• Horiba Ltd

Inventors

• Sugihara Yoshifumi

Classifications

• G01M17/0072

  the wheels of the vehicle co-operating with rotatable rolls (G01M17/022, G01M17/045, G01M17/065 take precedence) · CPC title

• G05B2219/24036

  Test signal generated by microprocessor, for all I-O tests · CPC title

• G05B19/0423 Primary

  Input/output · CPC title

• G01M17/007

  Wheeled or endless-tracked vehicles (G01M17/08 takes precedence) · CPC title

• G07C5/0825

  using optical means · CPC title