Drive assist device

• US 9,827,907 B2
• Filed: 02/17/2014
• Issued: 11/28/2017
• Est. Priority Date: 07/05/2013
• Status: Active Grant

• Current Assignee: Clarion Co., Ltd. (Faurecia SA)
• Original Assignee: Clarion Co., Ltd. (Faurecia SA)
• Inventors: Sugita, Muneki, Yoshihara, Keiichiro, Ishii, Takaaki, Miyamoto, Yo, Yamagata, Shohei
• Primary Examiner(s): Rink, Ryan
• Application Number:
  US14/890,751
• Publication Number:
  US 20160129836A1
• Time in Patent Office: 1,380 Days
• Field of Search: None
• CPC Class Codes: B60K 2360/166 Navigation
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/23 Head-up displays [HUD] optical aspects of head-up displays G02B27/01
• CPC Class Codes: B60K 35/28 characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
• CPC Class Codes: B60R 2300/205 using a head-up display
• CPC Class Codes: B60R 2300/80 characterised by the intended use of the viewing arrangement
• CPC Class Codes: B60R 2300/8086 for vehicle path indication
• CPC Class Codes: B62D 15/021 Determination of steering angle
• CPC Class Codes: B62D 15/0295 by overlaying a vehicle path based on present steering angle over an image without processing that image
• CPC Class Codes: G01C 21/365 Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G08G 1/163 involving continuous checking
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

Display of a drive assist by a virtual image is understandably presented to a driver. A drive assist device 1, which displays a virtual image 35 including a vehicle mark 76 on a vehicle 2 and assists driving by moving the vehicle mark 76, is configured to be provided with a relative-value converting unit 62 which converts a recommended driving operation to be shown to a driver 3 to a relative value based on a driving operation of present time; wherein the vehicle mark 76 is moved by a movement amount corresponding to the relative value to notify the driver 3 of the recommended driving operation.

Claims

1. A drive assist device comprising:

a heads-up display projector that displays a virtual image of a predetermined mark in a vehicle and the drive assist device supports a driver to drive the vehicle by displaying a movement of the predetermined mark,

wherein the predetermined mark indicates a recommended driving operation at a passage-planned point,

the passage-planned point is a point through which the vehicle is planned to pass at a certain time which is ahead of a present time,

the drive assist device further comprises a processor that calculates the passage-planned point based on a vehicle speed at the present time and based on the certain time and converts an amount of the recommended driving operation at the passage-planned point into a relative value by obtaining a difference between the amount of the recommended driving operation and an amount of a driving operation at a present time, and

the heads-up display projector displays the predetermined mark that is moved based on a movement amount depending on the relative value.

2. The drive assist device according to claim 1, wherein, together with the predetermined mark, a value of the recommended driving operation and/or the relative value are displayed.

3. The drive assist device according to claim 1, wherein a coordinate axis including an origin is displayed, and the predetermined mark is moved from the origin by the movement amount depending on the relative value within a coordinate defined by the coordinate axis.

4. The drive assist device according to claim 1, wherein the processor converts a position of an object, which is presented in a traveling-direction front side, to a second relative value based on a position of the vehicle at the present time, and the position of the object is displayed at a position depending on the second relative value based on the position of the vehicle at the present time together with the predetermined mark.

5. The drive assist device according to claim 1, wherein the recommended driving operation and the driving operation at the present time include at least one of a vehicle speed and a width-direction position.

6. The drive assist device according to claim 5, wherein the recommended driving operation and the driving operation at the present time include a steering angle and a relative value of the steering angle is displayed by rotation of the predetermined mark.

7. The drive assist device according to claim 5, wherein a size of the predetermined mark is variably displayed depending on a relative value of the vehicle speed.

8. The drive assist device according to claim 5, wherein the predetermined mark is displayed and is moved in a vertical direction by the movement amount depending on a relative value of the vehicle speed and in a horizontal direction by the movement amount depending on a relative value of the width-direction position.

9. The drive assist device according to claim 1, wherein a message depending on the relative value is displayed by a display mode depending on the relative value.