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Head-up display device for vehicles

A head-up display and display technology, applied in vehicle components, instruments, optics, etc., can solve problems such as passenger discomfort and unreliable vehicle information.

Active Publication Date: 2016-01-20
DENSO CORP
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  • 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

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  • Head-up display device for vehicles
  • Head-up display device for vehicles
  • Head-up display device for vehicles

Examples

Experimental program
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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 stepper 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 de...

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PUM

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Abstract

The HUD device (1) includes a stepping motor (40) that rotates a mirror (32) to adjust a display position of a virtual image (36). The stepping motor (40) has an electrical stable point (θe) and a mechanical stable point (θm). A control system (70) controls a drive signal for the stepper motor (40) in response to an adjustment command. The pole teeth (441, 442) of a specific phase are set as stable pole teeth, and the magnetic attraction force provided by the pole teeth of a specific phase and the rotor (41) is greater than that of the pole teeth (451, 452) of another phase when no power is charged. provided by the magnetic attraction. The control system (70) is configured to continue applying the drive signal until a target stabilization point (θet) is reached even after the regulation command ceases. The target stable point (θet) is set to an electrical stable point (θe) at which holding torque is provided by the stable pole teeth ( 441 , 442 ) of the specific 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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R1/00G02B27/01
CPCG02B27/0149B60K35/00G02B27/01G02B27/0101
Inventor 佐佐木达也中根秀行
Owner DENSO CORP