JP2014137666A - On-vehicle electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enlarge an image display plane of a display device, and to facilitate an initialization operation.SOLUTION: Two portions in the vicinity of two corner parts located on a diagonal line of an image display plane 1202 of a display device 12 are simultaneously depressed respectively by fingers of left and right hands, and the image display plane 1202 is caused to be displaced backward. A rear plane of the display device 12 is displaced backward to displace plungers of first and second limit switches 22A and 22B. When an amount of the displacement of the plunger exceeds over a threshold amount of the displacement, both of the first and second limit switches 22A and 22B are simultaneously turned on. Because the first and second limit switches 22A and 22B are simultaneously turned on, therefore, an AND circuit supplies a reset signal to a reset input terminal of a reset signal of an ECU as an effective state. Because the reset signal becomes effective, thus, the ECU executes an initialization operation, an on-vehicle electronic device 10A is thereby initialized, and is restored to a normal state.

Description

  The present invention relates to an in-vehicle electronic device.

As an in-vehicle electronic device mounted on a vehicle, an electronic device equipped with an ECU such as a car navigation device or a car audio device is provided.
The ECU enters an infinite loop due to some cause, for example, electromagnetic noise, electrostatic noise, or software (control program) runaway, or it cannot accept the operation of the operation switch, or repeats unintended operations. May cause problems such as execution.
Therefore, a reset switch as shown in Patent Documents 1 and 2 is provided in the in-vehicle electronic device, and by operating this reset switch, the in-vehicle electronic device (ECU) is forcibly initialized and returned to normal operation. Yes.
In-vehicle electronic devices are often provided with an escutcheon switch that is a plurality of operation switches in an escutcheon frame that covers the periphery of the image display surface of the display device, and a reset switch is also provided in the escutcheon frame. In this case, in order to prevent erroneous operation, the reset switch is configured to be operated using a pen tip or the like.

JP-A-5-307509 Japanese Patent Laid-Open No. 6-1888075

However, in recent years, there is a tendency to provide a touch panel switch on an image display surface as a display device of an in-vehicle electronic device and to eliminate an escutcheon switch as hardware.
In this case, in order to display the operation buttons on the image display surface, it is necessary to secure the image display surface as large as possible. Therefore, the escutcheon frame becomes narrow, and it becomes difficult to secure a space for providing the reset switch.
The present invention has been made in view of such circumstances, and an object thereof is to provide an in-vehicle electronic device that is advantageous for easily performing an initialization operation while enlarging an image display surface of a display device. There is.

  In order to achieve the above object, the present invention is an in-vehicle electronic device having a display device having an image display surface, and detects a physical quantity of the image display surface caused by a force applied to the image display surface. And detecting means for initializing the in-vehicle electronic device when the detected physical quantity exceeds a predetermined threshold value.

According to the first aspect of the present invention, when the physical quantity of the image display surface generated due to the force applied to the image display surface is detected and the detected physical quantity exceeds a predetermined threshold, the vehicle-mounted electronic device Was initialized.
Therefore, since it is possible to initialize the in-vehicle electronic device by a simple operation without securing a space for providing the reset switch in a place around the image display surface, it is possible to initialize the display device while enlarging the image display surface. This is advantageous for easy operation.
According to the second aspect of the present invention, the in-vehicle electronic device can be initialized by a simple operation of displacing the image display surface in a direction orthogonal to the image display surface, which is advantageous in improving operability. .
According to the invention described in claim 3, since the supporting means for supporting the display device is provided between the display device and the housing inside the housing, the in-vehicle electronic device can be attached to or removed from the vehicle interior. In doing so, it is not necessary to consider the support means, which is advantageous in facilitating the work of attaching and detaching the in-vehicle electronic device.
According to the fourth aspect of the invention, the in-vehicle electronic device is initialized only by performing an operation of simultaneously pressing two places on the image display surface, which is advantageous in suppressing initialization due to an erroneous operation. .
According to the fifth aspect of the present invention, since the supporting means for supporting the display device is provided between the casing and a portion in the vehicle interior in which the casing is incorporated, the configuration inside the casing is simplified. Is advantageous.
According to the sixth aspect of the invention, the in-vehicle electronic device is initialized only by performing an operation of simultaneously pressing two places on the image display surface, which is advantageous in suppressing initialization due to an erroneous operation. .
According to the seventh aspect of the invention, the in-vehicle electronic device is initialized only by performing an operation of tapping the image display surface by hand, which is advantageous in suppressing initialization due to an erroneous operation.
According to the eighth aspect of the present invention, it is not necessary to secure a space for providing an operation switch at a location around the image display surface, which is more advantageous in enlarging the image display surface.

It is a front view of in-vehicle electronic equipment 10A of a 1st embodiment. It is AA sectional view taken on the line of FIG. It is a block diagram which shows the structure of the control system of 10 A of vehicle-mounted electronic devices of 1st Embodiment. It is sectional drawing which shows the attachment state of the vehicle-mounted electronic device 10B of 2nd Embodiment. It is a front view of in-vehicle electronic equipment 10C of a 3rd embodiment. It is AA sectional view taken on the line of FIG. It is a block diagram which shows the structure of the control system of 10 C of vehicle-mounted electronic devices of 3rd Embodiment. It is sectional drawing which shows the attachment state of 10 C of vehicle-mounted electronic devices in the modification of 3rd Embodiment.

(First embodiment)
Next, embodiments of the present invention will be described with reference to the drawings.
In the following embodiments, the case where the in-vehicle electronic device is a car navigation device will be described.
First, the configuration of the control system of the in-vehicle electronic device will be described.
As shown in FIG. 3, the in-vehicle electronic device 10A is mounted on a vehicle, and includes a display device 12, a touch panel switch 14, a positioning unit 16, a map database 18, an audio output unit 20, and first and second limit switches. 22A, 22B, AND circuit 24, ECU26, etc. are comprised.

The display device 12 displays information including characters, icons, maps, and the like on the image display surface 1202 (FIGS. 1 and 2) based on the control of the ECU 26, and has a rectangular plate shape.
In the present embodiment, a case where the display device 12 is a flat panel display such as a liquid crystal display or an organic EL display will be described. The display device 12 may be any device that displays information, and various conventionally known displays can be used.

The touch panel switch 14 constitutes a touch panel together with the display device 12.
The touch panel switch 14 has a transparent sheet shape and is provided so as to cover the image display surface 1202 of the display device 12 so as to be visible.
The touch panel switch 14 receives a detection signal corresponding to the operation button when the user's fingertip touches the position of the touch panel switch 14 corresponding to the operation button while the operation button is displayed on the image display surface 1202. It is generated and supplied to the ECU 26.
In this embodiment, the case where the touch panel switch 14 is provided on the image display surface 1202 will be described. However, the present invention can of course be applied to the case where the touch panel switch 14 is not provided on the image display surface 1202. is there.

  The positioning unit 16 measures the position of the vehicle based on a positioning signal received from a positioning satellite such as a GPS satellite, or based on a detection result of an acceleration sensor or a gyro, vehicle speed information obtained from the vehicle, or the like. is there.

  The map database 18 stores map information in which various information such as roads, facilities, stores, and terrain are associated with position information.

  The voice output unit 20 generates voice guidance such as route guidance or warning sound based on the control of the ECU 26.

The ECU 26 includes a CPU, a ROM that stores and stores a control program, a RAM as an operation area of the control program, an EEPROM that holds various data in a rewritable manner, an interface unit that interfaces with peripheral circuits, and the like. The
A function as a navigation device is realized by the CPU executing the control program.
That is, the CPU causes the display device 12 to display the map information read from the map database 18 based on the vehicle position information obtained from the positioning unit 16.
Further, the CPU determines a destination based on a touch operation of the touch panel switch 14, searches for a route from the current position to the destination, causes the display device 12 to display route guidance based on the search result, and outputs a voice. The voice guidance for route guidance by the unit 20 is performed.

The ECU 26 also includes a reset input terminal PR that receives a reset signal.
When the reset signal applied to the reset input terminal PR becomes valid (for example, “H” level), the ECU 26 executes its own initialization operation.
The ECU 26 enters, for example, an infinite loop due to electromagnetic noise, electrostatic noise, or a software (control program) runaway, or the touch operation of the operation button is not accepted, or an unintended operation is repeated. When the ECU 26 executes the initialization operation, the in-vehicle electronic device 10A is initialized and returns to a normal state.

The first and second limit switches 22A and 22B are turned on by being pressed as will be described later.
The AND circuit 24 is configured to validate the reset signal applied to the reset input terminal PR of the reset signal of the ECU 26 only when the first and second limit switches 22A and 22B are simultaneously turned on. When one or both of the two limit switches 22A and 22B are OFF, the reset signal is invalidated.

Next, the structure of the in-vehicle electronic device 10A will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the in-vehicle electronic device 10 </ b> A further includes a housing 28, an electrical component 30, and a support unit 32.

The housing 28 accommodates and holds the display device 12 and the electrical unit 30. The housing 28 is installed at an appropriate location in the vehicle interior using a mounting member (not shown), for example, a suction cup device (not shown). It is detachably attached to the upper surface of the ment panel.
The housing 28 includes a rectangular plate-shaped rear wall 2802, four side walls 2804 standing from four sides of the rear wall 2802, and a frame portion 2806 extending in a rectangular frame shape along the front edge of each side wall 2804. The inside of the frame 2806 is an opening 2808 that exposes the image display surface 1202 to the front.

  The electrical component 30 constitutes the positioning unit 16, the map database 18, the voice output unit 20, the AND circuit 24, and the ECU 26 described above. For example, electronic components such as LSI and IC are mounted on a printed wiring board. It consists of In the present embodiment, electrical component 30 is attached to the central portion of rear wall 2802.

  The display device 12 is disposed inside the housing 28 so as to be displaceable in a direction orthogonal to the image display surface 1202 so that the image display surface 1202 is positioned in the opening 2808 inside the frame portion 2806.

The support means 32 supports the display device 12 so that it can be displaced in a direction orthogonal to the image display surface 1202.
In the present embodiment, the support means 32 is made of an elastic material that can be elastically deformed, has a uniform rectangular cross section, and extends so as to have a rectangular frame shape that is slightly smaller than the outline of the display device 12. Has been. As the elastic material, various conventionally known materials such as rubber and urethane foam can be used. Further, the support means 32 only needs to be able to support the display device 12 so as to be displaceable in a direction orthogonal to the image display surface 1202, and is arbitrary such as using a spring instead of an elastic material.
The support means 32 includes a rear surface 1204 located on the opposite side of the image display surface 1202 of the display device 12 and a rear wall 2802 of the housing 28 with four sides parallel to the four sides of the display device 12 inside the housing 28. And each is attached by an adhesive.
The support means 32 is compressed and deformed in a state where the image display surface 1202 of the display device 12 is in contact with the frame portion 2806. Therefore, the support means 32 is in a state where the image display surface 1202 is in contact with the frame portion 2806. The display device 12 is urged forward so as to be maintained.

The first and second limit switches 22 </ b> A and 22 </ b> B are arranged so that they can be pressed by locations near two corners located on the diagonal line of the rear surface 1204 of the display device 12, and are attached to the rear wall 2802, respectively. ing.
The first and second limit switches 22A and 22B are configured to include a switch body 2202 and a plunger 2204 protruding from one end of the switch body 2202, and the plunger 2204 is immersed in the switch body 2202 along the axial direction thereof. When the direction is displaced by a predetermined threshold displacement amount, the on-operation is performed.
In the present embodiment, the first and second limit switches 22A and 22B are the same, and the threshold displacement amount is also the same. The first and second limit switches 22A and 22B are provided so that the displacement direction of the plunger 2204 is orthogonal to the image display surface 1202, and the plunger is in a state where the image display surface 1202 is in contact with the frame portion 2806. The front end of 2204 is in contact with the rear surface 1204 of the display device 12.
Accordingly, the first and second limit switches 22A and 22B constitute detection means for detecting a physical quantity of the image display surface 1202 generated due to the force applied to the image display surface 1202.
In other words, the physical quantity is the amount of displacement of the image display surface 1202 along the direction orthogonal to the image display surface 1202, and the first and second limit switches 22 </ b> A and 22 </ b> B have the image display surface 1202 and the image display surface 1202. Displacement detection means for detecting displacement exceeding the threshold displacement amount in the orthogonal direction is configured.

Next, an operation when initializing the in-vehicle electronic device 10A will be described.
Assume that the ECU 26 runs out of control for some reason, and a malfunction has occurred such as the operation of the operation buttons displayed on the image display surface 1202 being disabled.
As shown in FIG. 1, the user corresponds to locations on the image display surface 1202 near the two corners located on the diagonal line of the image display surface 1202, that is, the first and second limit switches 22A and 22B. The part of the image display surface 1202 is pressed simultaneously with the fingers of the left and right hands, and the image display surface 1202 is displaced backward.

As a result, the rear surface 1204 of the display device 12 is displaced rearward while the support means 32 is compressed and deformed to displace the plunger 2204 of the first and second limit switches 22A and 22B, and the displacement amount of the plunger 2204 is the threshold displacement amount. Is exceeded, both the first and second limit switches 22A and 22B are simultaneously turned on.
The AND circuit 24 supplies the reset signal to the reset input terminal PR of the reset signal of the ECU 26 as a valid state when both the first and second limit switches 22A and 22B are simultaneously turned on.
The ECU 26 executes an initialization operation when the reset signal becomes valid, whereby the in-vehicle electronic device 10A is initialized and returns to a normal state.
In the present embodiment, the AND circuit 24 and the ECU 26 constitute an initialization unit that initializes the in-vehicle electronic device 10A when the physical quantity detected by the detection unit exceeds a predetermined threshold value.
In other words, the AND circuit 24 and the ECU 26 constitute initialization means for initializing the in-vehicle electronic device 10A when both the first and second limit switches 22A and 22B are simultaneously turned on.

According to the present embodiment, when the physical quantity of the image display surface 1202 generated due to the force applied to the image display surface 1202 is detected and the detected physical quantity exceeds a predetermined threshold, the vehicle-mounted electronic device Initialization of 10A was performed.
Therefore, the in-vehicle electronic device 10A can be initialized by a simple operation without securing a space for providing the reset switch in the vicinity of the image display surface 1202 as in the prior art. Therefore, it is advantageous in easily performing the initialization operation of the in-vehicle electronic device 10A while enlarging the image display surface 1202 of the display device 12.
In addition, since the touch panel switch 14 is provided on the image display surface 1202, the operation switches around the image display surface 1202 can be eliminated. For this reason, it is not necessary to secure a space for providing the operation switch at a location around the image display surface 1202, which is further advantageous in enlarging the image display surface 1202.

The physical quantity is a displacement amount of the image display surface 1202 along the orthogonal direction, supports the display device 12 so as to be displaceable in a direction orthogonal to the image display surface 1202, and the image display surface 1202 in the orthogonal direction. Displacement detecting means for detecting the displacement was provided.
Therefore, the in-vehicle electronic device 10A can be initialized by a simple operation of displacing the image display surface 1202 in a direction orthogonal to the image display surface 1202, which is advantageous in improving operability.

Further, the displacement detection means includes a first limit switch 22A and a second limit switch 22B which are provided so as to be pressed by the positions of the rear surface 1204 near the two corners located on the diagonal line of the rear surface 1204 of the display device 12. When both of the limit switches 22A and 22B are simultaneously turned on, the in-vehicle electronic device 10A is initialized by the initializing means.
Accordingly, the in-vehicle electronic device 10A is initialized for the first time by performing an operation of simultaneously pressing two places on the image display surface 1202, which is clearly different from a normal operation of touching the touch panel switch 14 with a finger. This is advantageous in suppressing initialization due to.
In the present embodiment, the case where the displacement detection unit is configured by the two limit switches 22A and 22B has been described. However, various conventionally known displacement sensors other than the limit switch can be used as the displacement detection unit.
Further, the displacement detection means may be constituted by one limit switch or may be constituted by three or more limit switches.
However, if the displacement detection means is configured by the two limit switches 22A and 22B as in the present embodiment, it is advantageous for simplifying the configuration of the displacement detection means and suppressing initialization due to an erroneous operation.

  Further, since the support means 32 for supporting the display device 12 is provided between the display device 12 and the housing 28 inside the housing 28, when the in-vehicle electronic device 10A is attached to or removed from the vehicle interior, Therefore, it is not necessary to consider the support means 32, which is advantageous in facilitating the attachment / detachment work of the in-vehicle electronic device 10A.

(Second Embodiment)
Next, a second embodiment will be described.
The second embodiment is a modification of the first embodiment, and differs from the first embodiment in that the support means 32 is provided outside the housing 28 instead of inside the housing 28. ing.
In the following embodiments, the same or similar parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. The parts different from the first embodiment are emphasized. explain.
As shown in FIG. 4, the in-vehicle electronic device 10 </ b> B of the second embodiment includes a display device 12, an electrical component 30, and a housing 28 that accommodates and holds the display device 12 and the electrical component 30. It is incorporated in a mounting recess 36 formed in the instrument panel 34.

The housing 28 includes a rectangular plate-shaped rear wall 2802, four side walls 2804 rising from four sides of the rear wall 2802, a frame portion 2806 extending in a rectangular frame shape along the front edge of each side wall 2804, and A plurality of attachment members 38 provided at intervals along the four side walls 2804 at intervals behind the frame portion 2806.
The electrical component 30 is attached to the central portion of the rear wall 2802.
The display device 12 is attached to the housing 28 so that the image display surface 1202 and the rear surface 1204 are sandwiched between the frame portion 2806 and the attachment member 38 inside the housing 28.

The mounting recess 36 includes a bottom wall 3602 that has a rectangular shape that is slightly larger than the contour of the housing 28, and four side walls 3604 that stand up from four sides of the bottom wall 3602. The front part is connected to the instrument panel 34.
The recess 36 has a depth that is larger than the thickness of the housing 28.
The display device 12 is connected to the image display surface 1202 between the rear wall 2802 of the housing 28 and the bottom wall 3602 of the recess 36, that is, between the housing 28 and a portion in the vehicle interior in which the housing 28 is incorporated. Support means 40 is provided for supporting the displacement in the orthogonal direction.
In the present embodiment, the support means 40 is made of an elastic material that can be elastically deformed, like the support means 32 of the first embodiment, and has a rectangular shape with a uniform cross section. Is formed so as to be a rectangular frame that is slightly smaller.
The support means 40 is attached to the rear wall 2802 of the housing 28 and the bottom wall 3602 of the recess 36 with an adhesive, with four sides parallel to the four sides of the display device 12.

The first and second limit switches 22 </ b> A and 22 </ b> B are provided so as to be pressed by a location on the rear wall 2802 of the housing 28 corresponding to the vicinity of two corners located on the diagonal line of the image display surface 1202 of the display device 12. , And are attached to the bottom wall 3602 of the recess 36, respectively.
The first and second limit switches 22A and 22B are configured in the same manner as in the first embodiment, and the distal end of the plunger 2204 is a housing in a state where the display device 12 is attached to the recess 36 via the support means 40. It is in contact with the rear wall 2802 of the body 28.
Accordingly, as in the first embodiment, the first and second limit switches 22A and 22B constitute detection means and displacement detection means.

When initializing the in-vehicle electronic device 10B, the user can place the image display surface 1202 in the vicinity of the two corners located on the diagonal line of the image display surface 1202, that is, as in the first embodiment, that is, The positions of the image display surface 1202 corresponding to the first and second limit switches 22A and 22B are simultaneously pressed with the fingers of the left and right hands, respectively, and the image display surface 1202 is displaced rearward.
Thereby, the rear wall 2802 of the housing 28 is displaced rearward while the support means 40 is compressed, thereby displacing the plunger 2204 of the first and second limit switches 22A and 22B, and the displacement amount of the plunger 2204 is the threshold displacement amount. Is exceeded, both the first and second limit switches 22A and 22B are simultaneously turned on.
Thereafter, as in the first embodiment, as shown in FIG. 3, the AND circuit 24 enables the reset signal when both the first and second limit switches 22A and 22B are simultaneously turned on. To the reset input terminal PR of the reset signal of the ECU 26.
The ECU 26 executes an initialization operation when the reset signal becomes valid, whereby the in-vehicle electronic device 10B is initialized and returns to a normal state.

In the second embodiment, the same effects as in the first embodiment can be obtained.
In the second embodiment, the support means 40 that supports the display device 12 so as to be displaceable in a direction orthogonal to the image display surface 1202 is provided between the housing 28 and a portion in the vehicle interior in which the housing 28 is incorporated. Since it is provided in between, it is advantageous in simplifying the configuration inside the housing 28.

(Third embodiment)
Next, a third embodiment will be described.
In the first embodiment, initialization is performed based on the amount of displacement of the display device 12. However, the third embodiment is that initialization is performed based on acceleration applied to the display device 12. This is different from the embodiment.
As shown in FIG. 7, the in-vehicle electronic device 10C of the third embodiment will be described later instead of the first and second limit switches 22A and 22B and the AND circuit 24 of the first and second embodiments. An acceleration sensor 44 and a determination circuit 46 are provided.

  As shown in FIGS. 5 and 6, the configuration of the display device 12 and the housing 28 is the same as that of the second embodiment, and the display device 12 cannot be displaced into the housing 28 via the attachment member 38. Has been attached to.

The acceleration sensor 44 constitutes detection means for detecting a physical quantity of the image display surface 1202 generated due to the force applied to the image display surface 1202. In this case, the physical quantity is in a direction orthogonal to the image display surface 1202. Acceleration along
One acceleration sensor 44 is provided on the rear surface 1204 of the display device 12. In the present embodiment, the acceleration sensor 44 is provided at the center of the rear surface 1204. The acceleration sensor 44 only needs to be able to detect the vibration of the image display surface 1202, and the arrangement position and the number thereof are arbitrary.

As shown in FIG. 7, the determination circuit 46 determines whether or not the acceleration detected by the acceleration sensor 44 exceeds a threshold acceleration corresponding to the threshold value. It is supplied to the reset input terminal PR of the reset signal.
The threshold acceleration is not erroneously determined by the acceleration applied to the image display surface 1202 due to the behavior of starting or stopping of the vehicle, and can accurately determine that the image display surface 1202 has been tapped by hand. Is set.
Therefore, in the third embodiment, the threshold determination circuit 46 and the ECU 26 constitute initialization means for initializing the in-vehicle electronic device 10C when the physical quantity detected by the detection means exceeds a predetermined threshold. doing.

When initializing the in-vehicle electronic device 10C, the user strikes the image display surface 1202 with a finger or a fist as shown in FIGS. Thereby, the vibration generated on the image display surface 1202 is detected by the acceleration sensor 44.
When the acceleration detected by the acceleration sensor 44 exceeds the threshold acceleration, the determination circuit 46 supplies the reset signal to a valid state to the reset input terminal PR of the reset signal of the ECU 26.
The ECU 26 executes an initialization operation when the reset signal becomes valid, whereby the in-vehicle electronic device 10C is initialized and returns to a normal state.
In the third embodiment, the arrangement location of the in-vehicle electronic device 10C is not particularly limited, and may be arranged on the upper surface of the instrument panel 34 via a suction cup device, for example, as shown in FIG. It may be incorporated into the recess 36 of the instrument panel 34 via the attachment member 42.

In the third embodiment, the same effect as in the first embodiment is produced.
In the third embodiment, the in-vehicle electronic device 10C can be initialized by a simple operation of tapping the image display surface 1202 by hand, which is advantageous in improving operability.
In addition, the in-vehicle electronic device 10C is initialized only by performing an operation of tapping the image display surface 1202 by hand, which is clearly different from a normal operation of touching the touch panel switch 14 with a finger. This is advantageous for suppressing the conversion.

  In the embodiment, the case where the in-vehicle electronic device is a navigation device has been described. However, the present invention is not limited as long as the in-vehicle electronic device includes a display device, and can be applied to, for example, a car audio device. is there.

  10A to 10C: On-vehicle electronic device, 12: Display device, 1202: Image display surface, 1204: Rear surface, 14: Touch panel switch, 22A: First limit switch, 22B: Second limit switch , 26... ECU, 28... Casing, 32 .. support means, 34... Instrument panel, 36 .. recess, 40 .. support means, 44.

Claims (8)

An in-vehicle electronic device having a display device having an image display surface,
Detecting means for detecting a physical quantity of the image display surface caused by a force applied to the image display surface;
Initialization means for initializing the in-vehicle electronic device when the detected physical quantity exceeds a predetermined threshold;
An in-vehicle electronic device comprising: The physical quantity is a displacement along the orthogonal direction of the image display surface,
Further comprising support means for supporting the display device so as to be displaceable in a direction orthogonal to the image display surface,
The detection means is a displacement detection means for detecting a displacement of the image display surface in the orthogonal direction.
The vehicle-mounted electronic device of Claim 1 characterized by the above-mentioned. The in-vehicle electronic device has a housing that houses the display device,
The support means is provided between the display device and the casing inside the casing.
The vehicle-mounted electronic device of Claim 2 characterized by the above-mentioned. The display device has a rectangular plate shape,
The displacement detection means includes a first limit switch and a second limit switch that are provided so as to be pressed by two locations located on a diagonal line on the rear surface on the opposite side of the image display surface of the display device. Configured,
The initialization means initializes the in-vehicle electronic device when both the first limit switch and the second limit switch are simultaneously turned on.
The in-vehicle electronic device according to claim 3. The in-vehicle electronic device has a housing that houses the display device,
The support means is provided between the casing and a portion of the vehicle interior in which the casing is incorporated.
The vehicle-mounted electronic device of Claim 2 characterized by the above-mentioned. The display device has a rectangular plate shape,
The displacement detection means includes a first limit switch and a second limit switch which are provided so as to be pressed by a location of the housing corresponding to two locations located on a diagonal line of the image display surface of the display device. Consists of
The initialization means initializes the in-vehicle electronic device when both the first limit switch and the second limit switch are simultaneously turned on.
The in-vehicle electronic device according to claim 5. The physical quantity is an acceleration along a direction orthogonal to the image display surface,
The detection means is an acceleration sensor provided in the display device.
The vehicle-mounted electronic device of Claim 1 characterized by the above-mentioned. The display device is provided with a touch panel switch on the image display surface.
The on-vehicle electronic device according to claim 1, wherein:

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