Unlock instant, AI-driven research and patent intelligence for your innovation.

Head-up display device for vehicle

A head-up display and display technology, applied to vehicle components, instruments, optics, etc., can solve problems such as unreliable vehicle information and uncomfortable passengers

Active Publication Date: 2013-08-14
DENSO CORP
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This caused the display position of the virtual image to move again after a temporary stop
Passengers in the vehicle will therefore feel uncomfortable and even make the vehicle information displayed as a virtual image unreliable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Head-up display device for vehicle
  • Head-up display device for vehicle
  • Head-up display device for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment ）

[0053] The HUD device 1 is not limited to the above-described embodiments, but can be implemented in many other embodiments.

[0054] For example, S102 to S107 may be omitted, and drive signal control processing may be performed without micro-stepping drive. S102, S109, and S110 can be omitted, and drive signal control processing can be performed without full-step drive. The drive signal control process may be modified so that S103 is implemented after the short press manipulation of S102, and S109 is implemented after the long press manipulation of S102. In S108, the charging condition by applying the driving signal may be maintained for a predetermined period of time before the application of the driving signal is stopped. The stepping motor 40 may be a motor other than the permanent magnet type, such as a variable reluctance type motor, etc., as long as the motor is between the electrical stable point θe determined by the holding torque and the mechanical stable point θm d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A HUD device (1)includes a stepper motor (40), which rotates a reflection mirror (32) for adjusting a display position of a virtual image (36). The stepper motor (40) has an electric stabilization point (theta e) and a mechanical stabilization point (theta m). A control system (70) controls a drive signal for the stepper motor (40) in response to an adjustment instruction. Pole teeth (441, 442)of a specified phase, which provides a greater magnetic attraction force with the rotor (41) when not powered than by pole teeth (451, 452) of other phase, is set as stabilization pole teeth. The control system (70) continues to apply the drive signal until the target stabilization point (theta e t) is attained even after the adjustment instruction is stopped. The target stabilization point (theta e t) is set to the electric stabilization point (theta e), at which the holding torque is provided by the stabilization pole teeth (441, 442) of the specified phase.

Description

technical field [0001] The present disclosure relates to a head-up display device for a vehicle. Background technique [0002] In a conventional head-up display (HUD) device for a vehicle, an illuminated image such as vehicle information displayed by a display unit is projected onto a projection target such as a windshield of the vehicle so that the displayed image can be displayed as a virtual image. JP2011-207431A (US2001 / 0241596A1) discloses an example of such a HUD device in which a display image provided by a display unit is reflected by a mirror such as a concave mirror and projected onto a projection target. By using the reflector, the HUD device can be installed in a limited space of the vehicle. [0003] In this HUD device, a stepping motor rotates a mirror in response to a drive signal corresponding to an adjustment instruction from the outside, so that a display position of a virtual image can be adjusted. According to this configuration, the passenger (driver) ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01B60R1/00
CPCG02B27/0149G02B27/0101B60K35/00G02B27/01
Inventor 佐佐木达也中根秀行
Owner DENSO CORP