JP4361853B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a display device for a vehicle that can control a light emission form of a display unit that displays an operation state of an in-vehicle device.

  As this type of vehicle display device, for example, the one described in Patent Document 1 is known.

  Moreover, as a display part which light-displays the operating state of a vehicle-mounted apparatus, the lock display part which light-displays that the door latch is locked (locked) in the restraint state which maintains a door in a fully-closed state, and the restraint state of a door latch There is an unlock display section for displaying that the lock is unlocked. The display content of such a display unit is visually recognized by a passenger such as a vehicle driver who receives light from the display unit.

  Conventional vehicle display devices have not been configured to finely control the light emission of the display unit.

Japanese Utility Model Publication No. 5-81473

  It is important that the display unit for emitting and displaying the operating state of the on-vehicle device such as the door latch is easily visible to a passenger such as a driver. However, the conventional vehicle display device cannot finely control the light emission of the display unit according to the situation in which the occupant is placed when visually recognizing the display unit, and changes in the brightness around the vehicle It was difficult to ensure the visibility stably.

  An object of the present invention is for a vehicle that can stably and sufficiently ensure the visibility of a display unit by controlling the light emission form of the display unit according to the situation where an occupant such as a driver is placed. It is to provide a display device.

In the vehicle display device according to the first aspect of the present invention, the lock display unit that displays that the door latch is locked in a restrained state that maintains the door in a fully closed state and / or the lock in the restrained state is unlocked. A display device for a vehicle capable of controlling a display form of a display unit including an unlock display unit for displaying that the vehicle is being operated, a first input unit for inputting information relating to the traveling speed of the vehicle, and the surroundings of the vehicle A second input unit that inputs information relating to brightness of the display, and a control unit that controls a light emission time and a light emission amount of the display unit based on input information from the first and second input units. The control means controls the light emission time of the display unit based on the input information from the first input unit, and continuously lights the display unit when the vehicle is stopped so that the vehicle travels. Speed is below the specified speed Blink emitting the display unit when the traveling speed of the vehicle when the above predetermined speed, characterized in that stops the blinking light emission of the display unit.

The vehicle display device according to a second aspect of the present invention is the vehicle display device according to the first aspect, wherein the control unit controls the light emission amount of the display unit based on input information from the second input unit, and the vehicle The amount of light emitted from the display unit is increased when the ambient brightness of the vehicle is above a predetermined level, and the amount of light emitted from the display unit is decreased when the ambient brightness of the vehicle is less than a predetermined level. And

A vehicle display device according to a third aspect of the present invention is the vehicle display device according to the first or second aspect, wherein the display portion is attached to a fixed position of an inner panel in a side door of the vehicle .

The vehicle display device according to a fourth aspect of the present invention is the vehicle display device according to any one of the first to third aspects, wherein the first input unit receives detection signals from an ignition switch, a vehicle speed sensor, a P range switch, and a stop lamp switch. The control means determines that the vehicle is stopped when the ignition switch is OFF, and when the ignition switch is ON and the vehicle speed sensor detects a vehicle speed less than the predetermined speed. When either one of the P range switch and the stop lamp switch is ON, it is determined that the vehicle is stopped, the ignition switch is ON, and the vehicle speed sensor detects a vehicle speed less than the predetermined speed. When detecting, when both the P range switch and the stop lamp switch are OFF When it is determined that the vehicle is traveling below the predetermined speed, and the ignition switch is ON and the vehicle speed sensor detects a vehicle speed that is equal to or higher than the predetermined speed, the vehicle travels at the predetermined speed or higher. It is judged that it is.

  According to the present invention, by controlling the light emission time and the light emission amount of the display unit based on the information on the traveling speed of the vehicle and the brightness around the vehicle, the driver and other passengers are placed. Thus, the light emission form of the display unit can be optimally controlled, and the visibility of the display unit can be secured stably and sufficiently.

  In addition, when the vehicle is stopped, the display unit continuously emits light, and when the vehicle is running, the display unit blinks to emit light, thereby ensuring sufficient visibility of the display unit under each situation. Can do. In particular, by causing the display unit to flash and emit light as in the latter case, sufficient visibility can be ensured even during traveling in which the situation around the vehicle changes variously.

  Further, by stopping the flashing light emission of the display unit when the traveling speed of the vehicle becomes equal to or higher than a predetermined speed, the driver's attention can be more concentrated on the high-speed driving of the vehicle.

  Further, when the brightness around the vehicle is greater than or equal to a predetermined level, the light emission amount of the display unit is increased, and when the brightness around the vehicle is less than a predetermined level, the light emission amount of the display unit is decreased. The visibility of the display unit can be sufficiently ensured even under circumstances where the brightness around the vehicle changes.

  In addition, as a display unit, a lock display unit that displays that a door latch as an in-vehicle device is locked in a restraint state that keeps the door in a fully closed state and / or that a lock in the restraint state is unlocked is displayed. By including the unlock display portion to be performed, it is possible to display the light emission display with high visibility that the restraint state of the door latch is locked and / or unlocked.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 2, the display device for a vehicle of this example includes an inside switch device 20 by a display control unit (control means) 10 incorporated in an ECU (Electronic Control Unit) 2 for controlling a door latch (on-vehicle device) 1. The light emission form of the lock display part 21A and the unlock display part 21B is controlled.

  The door latch 1 controlled by the ECU 2 is provided in the rear part of the side door 3 as shown in FIG. The door latch 1 includes a latch (not shown) that can mesh with a striker (not shown) provided on the vehicle body side, and a pole (not shown) that can restrain the latch at a meshing position with the striker. The side door 3 can be maintained in a fully closed state. That is, the pawl moves to the latching position of the latch, and the latch is restrained to the meshing position with the striker, whereby the door latch 1 enters a restraining state in which the side door 3 is maintained in the fully closed state. On the other hand, when the pole moves to the restraint release position to release the restraint of the latch, the door latch 1 enters a release state in which the maintenance of the fully closed state of the side door 3 is released. The door latch 1 is provided with an actuator for moving the pole to the restraint release position, that is, an actuator 1A (see FIG. 2) for releasing the door latch 1. Further, the door latch 1 is provided with a half switch 1B for detecting the half latch state, a full switch 1C for detecting the full latch position, and a pole switch 1D for detecting the position of the pole.

  The inside switch device 20 is attached to a fixed position of the inner panel 3A of the side door 3, and a surface 20A that is inclined obliquely rearward of the vehicle so as to face the driver D is formed. The surface 20A is provided with an inside switch (latch release switch) 22 together with a lock display portion 21A and an unlock display portion 21B.

  The ECU 2 (see FIG. 2) drives the actuator 1A to release the door latch 1 when the inside switch 22 is turned on or when the outdoor latch release switch 23 provided outside the vehicle compartment is turned on. The outdoor latch release switch 23 is configured, for example, as an integral part of or separate from the outside handle of the door, and can be operated from outside the vehicle compartment. Further, when the lock / unlock operation switch 24 is operated to the lock position (locking position), the ECU 2 invalidates the operation by the door handle or the inside switch 22 in order to lock the door latch 1 in the restrained state. On the other hand, when the lock / unlock operation switch 24 is operated to the unlock position (unlock position), the lock of the restrained state of the door latch 1 is released, that is, the release operation by the door handle or the inside switch 22 is validated. The ECU 2 includes a general configuration that controls the door latch 1 in accordance with switch operations of these switches 22, 23, and 24.

  Various light emitting elements such as lamps and light emitting diodes are used for the display portions 21A and 21B. The lock display portion 21A is configured using, for example, a light emitting diode that emits green light, and emits light when the door latch 1 is locked (locked) in a restrained state. Moreover, the unlock display part 21B is comprised using the light emitting diode which light-emits red, for example, and light-emits when the lock | rock of the restraint state of the door latch 1 is unlocked. The light emission forms of these display units 21A and 21B are controlled by a display control unit (control means) 10 incorporated in the ECU 2.

  The display control unit 10 has a detection signal from the optical sensor 11 that detects the brightness around the vehicle, a detection signal from the vehicle speed sensor 12 that detects the vehicle speed, and a shift range of the transmission in the P range (parking range). Based on the detection signal of the P range switch 13 for detecting the light and the detection signal of the stop lamp switch 14 for detecting the lighting of the brake stop lamp, the light emission forms of the display portions 21A and 21B are controlled as will be described later.

  In FIG. 2, 25 is an on-vehicle battery, 26 is an ignition switch, L1 is a power power line, and L2 is a signal power line.

  FIG. 3 is a flowchart for explaining display form control processing by the display control unit 10. The display control unit 10 controls the light emission modes when the display units 21A and 21B emit light. As described above, the lock display portion 21A emits light when the door latch 1 is locked (locked) in the restrained state, and the unlock display portion 21B emits light when the locked state of the door latch 1 is unlocked. Is done.

  First, when the ignition switch 26 is OFF, it is determined that the vehicle is stopped, and based on the detection signal of the optical sensor 11, it is determined whether or not the brightness around the vehicle is greater than or equal to a predetermined level ( Steps S1, S2). When the brightness is not less than a predetermined level, the display units 21A and 21B are continuously lighted sufficiently brighter than the surrounding brightness (step S3) to improve their visibility. On the other hand, when the brightness is less than a predetermined level, the display portions 21A and 21B are continuously lit darkly so as not to dazzle the driver D (step S4), thereby improving the visibility. Then, the display units 21A and 21B are turned off after a predetermined time has elapsed (steps S5 and S6).

  Further, when the ignition switch 26 is ON, it is determined based on the detection signal of the vehicle speed sensor 12 whether or not the vehicle traveling speed is equal to or higher than a predetermined speed (for example, 25 km / h or higher) (step S7). When the traveling speed is equal to or higher than the predetermined speed, it is determined that the vehicle is traveling at a high speed, and the display units 21A and 21B are not turned on (step S8). As a result, the driver D's attention can be concentrated on higher speed driving. Further, when the vehicle is provided with a centralized door lock device for automatically locking (locking) the door when the vehicle reaches a predetermined speed V or higher, when the speed is V or higher, the process proceeds from step S7 to step S8. You may make it transfer.

  Further, when it is determined in step S7 that the traveling speed is less than the predetermined speed, if the P range switch 13 or the stop lamp switch 14 is ON, it is determined that the vehicle is stopped and the above-described step S2 is performed. (Steps S9 and S10). On the other hand, when these switches 13 and 14 are OFF, it is determined that the vehicle is traveling at a low speed, and whether or not the brightness of the surroundings of the vehicle is a predetermined level or more based on the detection signal of the optical sensor 11. Is determined (step S11). Step S11 includes a vehicle stop state in which the vehicle is not restrained by a brake or the like and the transmission shift range is in the N range (neutral range). When the brightness is not less than a predetermined level, the display units 21A and 21B are blinked sufficiently brighter than the surrounding brightness (step S12) to improve their visibility. On the other hand, when the brightness is less than a predetermined level, the display portions 21A and 21B are blinked darkly so as not to dazzle the driver D (step S13), thereby improving their visibility.

  In this way, by controlling the light emission form (light emission time and light emission amount) of the display units 21A and 21B, the visibility of the display units 21A and 21B can be increased according to the situation where a passenger such as the driver D is placed. Stable and sufficient can be secured. In addition, when the display units 21A and 21B emit light continuously, the light emission time per unit time is longer than when the display units 21A and 21B emit light (intermittent light emission). The lighting time of the display units 21A and 21B in steps S3 and S4 is limited to a certain time by step S5, while the blinking time of the display units 21A and 21B in steps S12 and S13 is not particularly limited.

(Other embodiments)
Instead of the detection signal of the optical sensor 11, a detection signal indicating whether or not the vehicle headlamp has been turned on may be input. In this case, when the headlamp is turned off, it is determined that the brightness around the vehicle is higher than a predetermined level. When the headlight is turned on, the brightness around the vehicle is lower than a predetermined level. It can be judged that there is. In short, it is sufficient if there is an input unit (second input unit) for inputting information related to the brightness around the vehicle.

  In addition, it is not necessary to directly input the detection signal of the vehicle speed sensor 12, and in short, an input unit (first input unit) for inputting information related to the traveling speed of the vehicle is sufficient.

  In addition, the display unit to be controlled in the present invention is not limited to only the display units 21A and 21B that display the operation state of the door latch 1 as described above, and the operation states of various in-vehicle devices other than the door latch 1 are displayed. You may do. Examples of the vehicle-mounted device include a side glass lifting device, a seat slide device, and a light switching device. Further, the display unit may be visually recognized not only by the driver D but also by another passenger. Further, the vehicle display device of the present invention is not limited to the configuration incorporated in the ECU 2 but can be configured as a single unit.

It is the schematic side view which looked at the side door provided with the display device for vehicles concerning the present invention from the room inner side. It is a schematic block block diagram of the vehicle display apparatus in FIG. It is a flowchart for demonstrating the control processing of the display apparatus for vehicles in FIG.

Explanation of symbols

1 Door latch (on-vehicle device)
2 ECU
10 Display control unit (control means)
DESCRIPTION OF SYMBOLS 11 Optical sensor 12 Vehicle speed sensor 20 Inside switch apparatus 21A Lock display part (display part)
21B Unlock display section (display section)
22 Inside switch

Claims (4)

A display unit including a lock display unit that displays that the door latch is locked in a restraint state that keeps the door fully closed and / or an unlock display unit that displays that the lock in the restraint state is unlocked. A display device for a vehicle capable of controlling the display form of
A first input unit for inputting information relating to a traveling speed of the vehicle;
A second input unit for inputting information on brightness around the vehicle;
Control means for controlling a light emission time and a light emission amount of the display unit based on input information from the first and second input units;
Equipped with a,
The control unit controls a light emission time of the display unit based on input information from the first input unit, and continuously emits the display unit when the vehicle is stopped, so that the traveling speed of the vehicle When the vehicle speed is less than a predetermined speed, the display unit flashes and emits light, and when the traveling speed of the vehicle is equal to or higher than the predetermined speed, the display unit stops flashing and emitting light . The control means controls the amount of light emitted from the display unit based on input information from the second input unit. When the ambient brightness of the vehicle is equal to or higher than a predetermined level, the amount of light emitted from the display unit is controlled. The vehicle display device according to claim 1 , wherein the amount of light emitted from the display unit is decreased when the brightness around the vehicle is less than a predetermined level. The vehicle display device according to claim 1, wherein the display unit is attached to a fixed position of an inner panel in a side door of the vehicle. The first input unit inputs detection signals of an ignition switch, a vehicle speed sensor, a P range switch, and a stop lamp switch,
The control means includes
Determining that the vehicle is stopped when the ignition switch is OFF;
The vehicle stops when the ignition switch is ON and the vehicle speed sensor detects a vehicle speed less than the predetermined speed, and one of the P range switch and the stop lamp switch is ON. It is judged that
When the ignition switch is ON and the vehicle speed sensor detects a vehicle speed less than the predetermined speed, and when both the P range switch and the stop lamp switch are OFF, the vehicle is less than the predetermined speed. It ’s determined that
4. The vehicle according to claim 1 , wherein when the ignition switch is ON and the vehicle speed sensor detects a vehicle speed equal to or higher than the predetermined speed, it is determined that the vehicle is traveling at the predetermined speed or higher . The vehicle display device according to any one of the above.

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