JP2005289268A - Lamp system for vehicle - Google Patents

Lamp system for vehicle Download PDF

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Publication number
JP2005289268A
JP2005289268A JP2004109672A JP2004109672A JP2005289268A JP 2005289268 A JP2005289268 A JP 2005289268A JP 2004109672 A JP2004109672 A JP 2004109672A JP 2004109672 A JP2004109672 A JP 2004109672A JP 2005289268 A JP2005289268 A JP 2005289268A
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Japan
Prior art keywords
vehicle
lamp
indicator
additional
vehicle speed
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Pending
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JP2004109672A
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Japanese (ja)
Inventor
Masateru Hayashi
政輝 林
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Ichikoh Ind Ltd
市光工業株式会社
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Application filed by Ichikoh Ind Ltd, 市光工業株式会社 filed Critical Ichikoh Ind Ltd
Priority to JP2004109672A priority Critical patent/JP2005289268A/en
Publication of JP2005289268A publication Critical patent/JP2005289268A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lamp system capable of lighting an additional lamp with a sufficient amount of illumination even in an initial turning state in which a steering wheel is not sufficiently steered.
A vehicular lamp system according to the present invention variably controls the additional lamps 4 and 5 that are arranged on the left and right sides of the front of the vehicle and illuminate the front side of the vehicle, and the amount of light of the additional lamps 4 and 5. The control means 13, the steering angle detection means 11 for detecting the steering angle of the steering wheel, and the indicator detection means 14 for detecting the operation status of the direction indicator are provided. If the control means 13 determines that the direction indicator is operating based on the information from the indicator detection means 14, the control means 13 maximizes the additional lamp 4 (5) installed on the direction side where the direction indicator operates. When it is determined that the direction indicator is not operating, the additional lamp 4 installed on the steering direction side of the steering wheel with a light amount proportional to the rudder angle amount detected by the rudder angle detection means 11 Turn on (5).
[Selection] Figure 3

Description

  The present invention relates to a vehicular lamp system including an additional lamp for illuminating the front side.

2. Description of the Related Art A vehicle having an additional lamp for illuminating a front side that is not sufficiently illuminated by a headlamp when turning right or left at an intersection or when traveling on a curve is known. Nowadays, there has been developed a device that changes the amount of illumination of the additional lamp according to the steering angle of the handle. The amount of illumination increases as the steering angle of the handle (increase in the amount of rotation of the handle) increases. There has been devised an additional lamp that reduces the amount of illumination light in accordance with a decrease in angle (a decrease in the amount of rotation of the handle (amount of return of the handle)) (see, for example, Patent Document 1).
JP 2003-170777 A

  However, in the above-described additional lamp, the amount of light emitted from the additional lamp changes according to the steering angle of the handle, so when the steering wheel is not sufficiently steered (for example, immediately after the handle is started) In this case, the additional lamp is lit with a low light amount, and a sufficient amount of illumination light cannot be obtained. For this reason, there is a problem that it may be difficult to find a pedestrian or the like at the beginning of the turn when a wider peripheral field of view is required than during normal driving, such as when turning left or right at an intersection.

  The present invention has been made in view of the above problems, and provides a vehicular lamp system capable of lighting an additional lamp with a sufficient amount of illumination even in an initial turning state in which the steering wheel is not sufficiently steered. The task is to do.

  In order to solve the above-mentioned problem, the invention according to claim 1 includes an additional lamp that is disposed on each of the left and right sides of the front of the vehicle and illuminates the front side of the vehicle, and a control unit that variably controls the light amount of the additional lamp, A steering angle detection means for detecting a steering angle of the steering wheel; and an indicator detection means for detecting an operation status of the direction indicator. The control means is configured to detect the direction indicator based on information of the indicator detection means. When it is determined that the direction indicator is operating, the additional lamp on the direction side where the direction indicator is operating is turned on. When it is determined that the direction indicator is not operating, the steering angle detection means detects the additional lamp. The vehicle lamp system is characterized in that the additional lamp installed on the steering direction side of the handle is lit with a light amount proportional to the amount of steering angle.

  According to a second aspect of the present invention, in the vehicular lamp system according to the first aspect, the vehicle lamp system includes a vehicle speed detecting unit that detects a vehicle speed, and the control unit detects a vehicle speed detected by the vehicle speed detecting unit at a predetermined low speed. In the following cases, the additional lamp is turned off or dimmed.

  According to a third aspect of the present invention, in the vehicular lamp system according to the first aspect, the vehicle lamp system further includes a vehicle speed detecting unit that detects a vehicle speed, and the control unit detects that the vehicle speed detected by the vehicle speed detecting unit is a predetermined high speed. In the above case, the additional lamp is turned off or dimmed.

  The invention according to claim 4 is the vehicular lamp system according to any one of claims 1 to 3, wherein the additional lamp changes the illumination range by changing the optical axis of the light source to the left and right. It is a lamp that can be used.

  According to the first aspect of the present invention, since the additional lamp on the direction side where the direction indicator operates is turned on regardless of the steering state of the steering wheel, the turning of the steering wheel having a low steering angle when the vehicle turns at an intersection or the like Even in the initial state, the additional lamp on the turning direction side can be turned on with a sufficient amount of light to illuminate the front side in the turning direction, and visibility can be improved.

  According to the second aspect of the present invention, when the vehicle speed detected by the vehicle speed detection means is equal to or lower than the predetermined low speed, the additional lamp is turned off or dimmed, so that the preceding vehicle stops before the own vehicle. It is possible to prevent the driver of the vehicle or the oncoming vehicle from being bothered by the lighting of the additional lamp.

  Further, according to the invention according to claim 3, when the vehicle speed detected by the vehicle speed detection means is equal to or higher than a predetermined high speed, the additional lamp is turned off or dimmed. Thus, the additional lamp is not lit at the maximum light amount when the vehicle is operated, and it is possible to prevent the driver of the oncoming vehicle or the preceding vehicle from being bothered by the lighting of the additional lamp.

  Hereinafter, a vehicle lamp system according to the present invention will be described.

  FIG. 1 is a front view showing a vehicle provided with a vehicle lamp system according to the present invention. The vehicle 1 is provided with headlamps 2 and 3 as headlamps for illuminating the front of the vehicle, and the front side of the headlamps 2 and 3 that is difficult to be illuminated by the headlamps is illuminated below the headlamps 2 and 3. Additional lamps 4 and 5 are provided. As shown in FIG. 2, the illumination range by the headlamps 2 and 3 is limited to the range S1 in front of the vehicle, whereas the additional lamps 4 and 5 are located on the left and right front sides of the illumination range S1 of the headlamps 2 and 3. The ranges S3 and S2 can be illuminated. The additional lamps 4 and 5 are not always lit, but the lighting timing and the amount of illumination light are changed according to the rotation direction and steering angle of the steering wheel, the operation status of the direction indicator, and the like.

  FIG. 3 is a block diagram showing the configuration of the vehicle lamp system. The vehicular lamp system 10 includes a rudder angle detector (steer angle detector) 11, a vehicle speed detector (vehicle speed detector) 12, a controller (controller) 13, and an indicator detector (indicator detector) 14. And left and right headlamps 2 and 3 and left and right additional lamps 4 and 5.

  The rudder angle detector 11 includes a rotating disk provided on the handle and provided with a rotation angle signal slit, and an optical sensor. When the steering wheel is rotated, the steering angle detection unit 11 sends a steering angle pulse signal of alternating “High” level and “Low” level to the controller 13 in conjunction with steering of the steering wheel, and the controller 13 detects the steering angle. The steering state of the steering wheel is always determined based on the steering angle pulse signal received from the unit 11.

  The vehicle speed detection unit 12 is a device that generates a vehicle speed pulse signal according to the traveling state of the vehicle, and the controller 13 always determines the traveling speed of the vehicle by receiving the vehicle speed pulse signal.

  The indicator detector 14 is a device that detects the operating status (ON / OFF status) of the direction indicator and the operating direction (left and right) of the direction indicator, and the detected information is transmitted to the controller 13.

  The controller 13 is a control device that controls turning on and off the left and right headlamps 2 and 3 and the left and right additional lamps 4 and 5. Based on information from the rudder angle detection unit 11, the vehicle speed detection unit 12, and the indicator detection unit 14, the controller 13 turns on the additional lamp and turns off or turns off the light. Dimming off means that the amount of light (illuminance) of the additional lamps that are lit is continuously reduced little by little until the additional lamps 4 and 5 start to turn off until they are turned off. This is a time-consuming light-off method. By dimming the additional lamps 4 and 5, it is possible to prevent the driver's visibility from being reduced due to the instantaneous extinction of the additional lamps, and to reduce the driver's anxiety due to a sudden change in the amount of light. It becomes possible.

  Further, the additional lamps 4 and 5 may be lamps whose optical axes are fixed, or lamps capable of changing the illumination range by changing the optical axes to the left and right.

  FIG. 4 is a first flowchart illustrating the control process of the controller 13, and FIG. 5 is a diagram illustrating a change in the amount of illumination light of the additional lamp that changes in accordance with the steering angle of the steering wheel.

  The controller 13 detects the operating status of the direction indicator, specifically, whether it is ON or OFF, from the indicator detector 14, and when the direction indicator is ON, the direction of the operating direction indicator is on the right side. Or left side (step S.1). When the direction indicator is not in the ON state (NO in step S.2), the controller 13 determines the steering state of the steering wheel based on the steering angle pulse signal received from the steering angle detector 11, and determines whether the steering wheel is left or right. If the vehicle is steered, the steering direction is stored and the steering angle is obtained (step S.3). Subsequently, the controller 13 determines whether or not the steering angle is greater than or equal to a predetermined steering angle (step S.4). If the steering angle is less than the predetermined steering angle (for example, less than 3 degrees), the additional lamps 4, 5 Is turned off or dimmed (step S.5). When the steering angle is less than the predetermined steering angle, the additional lamps 4 and 5 are turned off. Therefore, when the steering wheel is only slightly steered, the additional lamp is not turned on. It is possible to prevent the lights 4 and 5 from frequently turning on and off.

  If the steering angle is equal to or greater than the predetermined steering angle, the controller 13 calculates the amount of illumination light proportional to the steering angle amount (step S.6). The additional lamp 4 (5) located on the steering direction side stored in 3 is turned on with the calculated illumination light amount (see Step S.7, FIGS. 5A and 5B), and the direction indicator again. Is repeatedly performed (step S.1).

  As described above, when the direction indicator is in the OFF state and the steering wheel is steered to an angle greater than or equal to the predetermined steering angle, the additional lamp 4 (5 ) Is turned on, the front side of the vehicle in the turning direction can be illuminated with the additional lamp 4 (5).

  On the other hand, when the direction indicator is in the ON state (in the case of YES in step S.2), the controller 13 lights the additional lamp 4 (5) disposed on the direction side in which the direction indicator operates with the maximum light amount. Thereafter (step S.8), the operation status detection of the direction indicator is repeated again (see step S.1, FIGS. 5A and 5C). In this way, when the direction indicator is in the ON state, the controller 13 lights the additional lamp 4 (5) on the direction side where the direction indicator operates regardless of the steering state of the steering wheel with the maximum light amount. Even if the steering angle of the steering wheel is low when the vehicle turns, the additional lamp on the turning direction side can be lit with a sufficient amount of light to illuminate the front side of the turning direction, thereby improving visibility. be able to.

  As described above, when the direction indicator is in the OFF state and the steering wheel is steered beyond the predetermined steering angle, the illumination light amount is increased in accordance with the increase in the steering angle of the steering wheel, and the steering angle of the steering wheel is increased. By reducing the illumination light amount in accordance with the decrease, the front side can be illuminated with the illumination light amount according to the steering angle of the steering wheel, and a sudden change in the illumination light amount can be prevented. On the other hand, when the direction indicator is in the ON state, the front side can be illuminated with a high amount of light regardless of the steering angle amount of the steering wheel, so that the visibility in the front side of the turning direction in urban areas such as intersections is improved. It becomes possible.

  As mentioned above, although the vehicle lamp system which concerns on this invention was demonstrated using drawing, the vehicle lamp system which concerns on this invention is not limited to what was mentioned above.

  Even if the direction indicator is in the ON state, it may not be preferable to light the additional lamp depending on the vehicle situation. For example, if the additional lamps 4 and 5 are turned on at the maximum light amount when other vehicles are stopped before the own vehicle when the intersection is stopped, or when the lane is changed while traveling on an expressway, There is a risk of annoying the driver of the vehicle.

  For this reason, step S. of the second flowchart shown in FIG. 10, Step S. 11, the vehicle speed is detected by the vehicle speed detection unit 12 (step S.10), and the detected speed is bothered by drivers of other vehicles due to the lighting of the additional lamps 4 and 5 when the intersection stops. If the speed is less than a predetermined speed (the vehicle speed is 10 km / h in FIG. 7 (a), such as almost stopped), the direction indicator The additional lamps 4 and 5 are turned off or dimmed regardless of the operating state and steering state of the steering wheel (see time 0 to 5 s in FIG. 7B), and the vehicle speed becomes higher than a predetermined low speed. , Step S. described above. 1-step S.E. You may make it perform the lighting process of 8 additional lamps.

  Similarly, in the case where the detected vehicle speed is higher than the speed indicating the high speed traveling of the vehicle (this speed is a predetermined high speed, the vehicle speed is 80 Km / h in FIG. 8A), Regardless of the operating status of the indicator and the steering status of the steering wheel, the additional lamps 4 and 5 are turned off or dimmed (see time 5s in FIG. 8B), and the vehicle speed is a predetermined high speed or less. Only in step S. described above. 1-step S.E. You may make it perform the lighting process of 8 additional lamps.

  Further, in the present embodiment, the additional lamps 4 and 5 are respectively installed on the left and right sides of the front of the vehicle. However, the additional lamps 4 and 5 may be installed only on one of the left and right sides. You may set so that it may become a different change rate for every 4th and 5th.

It is the front view which showed the left-right headlamp and the left-right additional lamp of a vehicle. It is the top view which illustrated the illumination range of a headlamp and an additional lamp. It is the block diagram which showed the vehicle lamp system which concerns on this invention. It is the 1st flowchart which showed the control processing of the controller. FIG. 5 is a graph showing temporal changes in the steering angle amount of the steering wheel and the light amount of the additional lamp in the control control of the controller shown in FIG. 4, and (a) is a graph showing changes in the steering angle amount of the steering wheel; ) Is a graph showing the change in the light quantity, and (c) is a graph showing the change in the light quantity when the operation status of the direction indicator is in the ON state and in the OFF state in the light quantity change graph in (b). It is the 2nd flowchart which showed the control processing of the controller. It is the graph which showed the time change of the vehicle speed in the control processing of the controller shown in FIG. 6, and the light quantity of an additional lamp, (a) shows a vehicle speed change, (b) is vehicle speed more than predetermined low speed. It is the graph which showed the light quantity change of the additional lamp from which the light quantity of an additional lamp changes in that case. It is the other graph which showed the time change of the vehicle speed in the control processing of a controller, and the light quantity of an additional lamp, (a) shows vehicle speed change, (b) is added when vehicle speed is below a predetermined high speed. It is the graph which showed the light quantity change of the additional lamp from which the light quantity of a lamp changes.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 2, 3 Headlamp 4, 5 Additional lamp 10 Vehicle lamp system 11 Steering angle detection part (steering angle detection means)
12 Vehicle speed detection unit (vehicle speed detection means)
13 Controller (control means)
14 Indicator detector (indicator detector)

Claims (4)

  1. An additional lamp that is arranged on the left and right of the front of the vehicle and illuminates the front side of the vehicle
    Control means for variably controlling the amount of light of the additional lamp;
    Rudder angle detecting means for detecting the steering angle of the steering wheel;
    An indicator detection means for detecting the operating status of the direction indicator,
    When the control means determines that the direction indicator is in operation based on the information of the indicator detection means, the control means turns on the additional lamp on the direction side in which the direction indicator is in operation, and the direction indication The additional lamp installed on the steering direction side of the steering wheel is turned on with a light amount proportional to the steering angle amount detected by the steering angle detection means when it is determined that the device is not operating. Vehicle lighting system.
  2. Vehicle speed detecting means for detecting the vehicle speed,
    2. The vehicle lamp system according to claim 1, wherein when the vehicle speed detected by the vehicle speed detection unit is equal to or lower than a predetermined low speed, the control unit turns off or turns off the additional lamp.
  3. Vehicle speed detecting means for detecting the vehicle speed,
    2. The vehicle lamp system according to claim 1, wherein the control unit turns off or turns off the additional lamp when the vehicle speed detected by the vehicle speed detection unit is equal to or higher than a predetermined high speed.
  4.   The vehicle according to any one of claims 1 to 3, wherein the additional lamp is a lamp capable of changing an illumination range by changing an optical axis of a light source to the left and right. Lamp system.
JP2004109672A 2004-04-02 2004-04-02 Lamp system for vehicle Pending JP2005289268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004109672A JP2005289268A (en) 2004-04-02 2004-04-02 Lamp system for vehicle

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Application Number Priority Date Filing Date Title
JP2004109672A JP2005289268A (en) 2004-04-02 2004-04-02 Lamp system for vehicle

Publications (1)

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JP2005289268A true JP2005289268A (en) 2005-10-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140055362A (en) * 2012-10-31 2014-05-09 현대모비스 주식회사 Lighting system for vehicle and control method thereof
KR20140055364A (en) * 2012-10-31 2014-05-09 현대모비스 주식회사 Lighting system for vehicle and control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140055362A (en) * 2012-10-31 2014-05-09 현대모비스 주식회사 Lighting system for vehicle and control method thereof
KR20140055364A (en) * 2012-10-31 2014-05-09 현대모비스 주식회사 Lighting system for vehicle and control method thereof
KR101934751B1 (en) * 2012-10-31 2019-01-03 현대모비스 주식회사 Lighting System for Vehicle and Control Method Thereof

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