CN201189842Y

CN201189842Y - Multi-stage stepping position follow vehicle front lamp system

Info

Publication number: CN201189842Y
Application number: CNU2008200331894U
Authority: CN
Inventors: 张承青
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-26
Filing date: 2008-03-26
Publication date: 2009-02-04
Anticipated expiration: 2018-03-26

Abstract

The utility model relates to a multistage step position servo headlight system which is characterized in that a steering position sensor, a vertical position sensor and a two-dimensional headlight support which is controlled by an electromagnetic position servo mechanism are arranged on an automobile; the steering angle and the uphill and downhill running states of the automobile are respectively transformed into multistage control signals in the steering position sensor and the vertical position sensor; a multistage signal controller is used for receiving the multistage control signals and outputting the servo position control signals of the electromagnetic position servo mechanism. According to the steering angle and the uphill and downhill running states, the utility model dynamically adjusts headlights of the automobile in two dimensions so as to suit the current road conditions, thereby improving the illumination in the forward direction of the automobile and enhancing the safety of the automobile running under dark road conditions.

Description

Multi-stage stepping position follower headlight system

Technical field

The utility model relates to and is used for improving automobile night driving condition, strengthens the safety that dark is driven, and when bend road conditions and ramp road conditions, enlarges the visual field of chaufeur, increases the chaufeur automobile front following control system of reflection time.

Background technology

Usually the common head light of installing on the automobile has only fixing range of exposures, and when night, vehicle was turned on bend, fixedly head light can not throw light on to curve inner side, usually " blind area " can occur, had had a strong impact on the safety of night travel; Vehicle at night because the range of exposures of car light is fixed, " blind area " can occur too under the uphill/downhill motoring condition, bring the safety issue of vehicle running in the night.

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of multi-stage stepping position follower headlight system is provided, so that according to automotive steering angle and uphill/downhill motoring condition, Der Scheinwerfer mit FernlichtAbblendlichtStandlicht is carried out two-dimentional dynamic adjustments, adapt with current condition of road surface condition, improvement strengthens the safety of travelling to the illuminance of vehicle forward direction under dark road conditions condition.

The utility model technical solution problem adopts following technical scheme:

The constructional feature of the utility model multi-stage stepping position follower headlight system is with car steering position sensor and upright position sensor to be set, setting is by the two-dimentional headlight support of electromagnetic position follow mechanism control, and automotive steering angle and uphill/downhill motoring condition are converted to the Multistage Control signal respectively in steering position sensor and upright position sensor; Receive the Multistage Control signal and export the following position control signal of electromagnetic position follow mechanism with the multilevel signal controller.

The utility model system control method is when vehicle is in turn condition, makes headlight turn over the angle of setting towards the direction level that vehicle was changeed in the Fu mode, and after turn condition finishes headlight is automatically reset; When vehicle is in upward slope or descending state, makes headlight turn over the angle of setting down or up in the Fu mode, and after upward slope or descending end, headlight is automatically reset.

Compared with the prior art, the utility model beneficial effect is embodied in:

1, the utility model is according to the steering angle and the uphill/downhill motoring condition of automobile, initiatively headlight is carried out two-dimentional dynamic adjustments in advance, angle that makes it to shine and current condition of road surface condition adapt, effectively improve illuminance, strengthened the safety of under dark road conditions condition, travelling vehicle forward direction.

2, the servo-actuated of the utility model headlight when negotiation of bends enlarged the visual field of chaufeur effectively, and can remind the other side to send a car in advance.

3, the utility model has changed the head light situation of correct range of exposures originally at vehicle because of the rear portion load variations, can adjust the car light irradiation angle and improve.

4, the utility model adopts multi-stage stepping position follower, can adopt two-dimentional Hall array sensor directly the relevant information of vehicle to be delivered to multiplexer (MUX, by multiplexer (MUX direct control electromagnetic position follow-up system, and then makes the headlight servo-actuated.The irradiation area that can make head light that rationally is provided with of its rotation direction stepping sum of series vertical direction stepping progression does not have obviously and beats.

5, concrete enforcement of the present utility model does not relate to complicated schemes such as microcomputer, stepping motor or electric steering gear, follows the principle of " enough getting final product ", is satisfying on the basis of basic function, does not increase any redundancy feature.

6, the existing control system of the utility model and vehicle itself is isolated fully, does not influence the original various operations of vehicle, and the original performance of vehicle is not formed any influence.

7, the utility model energy consumption only is about 10 watts, and each parts does not have obvious heating phenomenon, can long-time continuous use.

8, the utility model is simple in structure, and is solid and reliable, and installation and maintenance are easily convenient, and are particularly cheap, can be used for the upgrading repacking of existing various large and small type passenger vehicles or lorry, also can make it to become the standard configuration of new car.

Description of drawings

Fig. 1 is the utility model system architecture topological diagram.

Fig. 2 turns to the position transduser structural representation in the utility model.

Fig. 3 turns to position sensing, control and servo-actuated topological diagram in the utility model.

Fig. 4 is a sensor construction scheme drawing in upright position in the utility model.

Fig. 5 is upright position sensing in the utility model, control and servo-actuated topological diagram.

Fig. 6 is a two-dimentional binary channel multilevel controller topological diagram in the utility model.

Fig. 7 is vertical (turning to) Stellungsservosteuerung structural representation in the utility model.

Fig. 8 is a two-dimentional reset locking structural scheme of mechanism in the utility model.

Fig. 9 is a time-delay reset circuit in the utility model.

Number in the figure: 1 headlight, 2 armature, 3 taper uropores, 4 restoring boards, 5 pickup arms, 6 permanent magnetism ends, 7 gravity pendulums, 8 permanent magnetism tups, 9 servo-actuated permanent magnets, 10 center of oscillation, B steering box center of turn, K reset electromagnet, F reset component, α servo-actuated angle with motor magnet, 11 retracing springs, A gravity pendulum.

Below by the specific embodiment, the utility model is described in further detail in conjunction with the accompanying drawings:

The specific embodiment:

In the present embodiment, headlight position follower control method is when vehicle is in turn condition, makes headlight turn over the angle of setting towards the direction level that vehicle was changeed in the Fu mode, and after turn condition finishes headlight is automatically reset; When vehicle is in upward slope or descending state, makes headlight turn over the angle of setting down or up in the Fu mode, and after upward slope or descending end, headlight is automatically reset.

In the present embodiment, multi-stage stepping position follower headlight system is provided with steering position sensor and upright position sensor with car, setting is by the two-dimentional headlight support of electromagnetic position follow mechanism control, and automotive steering angle and uphill/downhill motoring condition are converted to the Multistage Control signal respectively in steering position sensor and upright position sensor; Receive the Multistage Control signal and export the following position control signal of electromagnetic position follow mechanism with the multilevel signal controller.

Turn to the setting range with 0～16 ° of inboard, 0～8 ° of illumination direction in the outside about servo-actuated angle α comprises, every grade of steering angle is set to 2 °; The vertical illumination direction has up and down each setting range of 12 °, is set to the level Four of 2 °, 4.5 °, 8 ° and 12 ° respectively.Above servo-actuated angular region and step value all can change design parameters easily according to the needs of different automobile types.

Relative set in concrete the enforcement also comprises:

Shown in Figure 1, steering position Hall array sensor, upright position Hall array sensor and binary channel two dimension multilevel controller and three parts of two-dimensional electromagnetic Stellungsservosteuerung are set to independently three modules, connect by multiway cable.It is hermetically sealed that three modules are, and can distinguish fast and replace, and is convenient to maintenance.

Shown in Figure 2, the setting of steering position Hall array sensor is to be the center with steering box center of turn B, be disposed radially the pickup arm 5 that rotates with steering box, the front end of pickup arm 5 is a permanent magnetism end 6, in the slewing area of pickup arm 5, each hall sensing device in the steering position Hall array sensor is set, with the turn sign gauge head on the permanent magnetism end 6 of pickup arm and the hall sensing device composition correspondence position on the correspondence position.

Fig. 2, shown in Figure 3, in the present embodiment, each the hall sensing device in the steering position Hall array sensor comprises the reseting sensor H corresponding to the steering box center position ₀, and be positioned at reseting sensor H ₀Two groups of both sides well-distributeds, every group is respectively four, i.e. H ₁, H ₂, H ₃And H ₄When left and right vehicle wheel rotated, steering position Hall array sensor was because pickup arm permanent magnetism end 6 approaching, and because of induction detects the rotational angle of steering box, being provided with and turning to initial angle is 2 degree, about have only H when turning to less than angle at the beginning ₀Provide high level, follow-up system remains on the original position; During greater than angle at the beginning, H ₀And H ₁Provide high level simultaneously; When steering angle continues to increase, by H ₁Provide high level separately; Steering angle increases once again, H ₁And H ₂Provide high level simultaneously, make up with this, steering position Hall array sensor will provide 17 position signals successively on the steering direction of the left and right sides, comprising the reset signal that turns to of center.

Referring to Fig. 4, upright position Hall array sensor is in the bottom of gravity pendulum 7 permanent magnetism tup 8 to be set, the center of oscillation A of gravity pendulum is arranged on the sensor outer housing, in the hunting range of gravity pendulum 7, each hall sensing device in the Hall array sensor of upright position evenly is set, with the vertical angle signal transducer on the composition of the Hall array senser element on permanent magnetism tup 8 and the correspondence position correspondence position.

Fig. 4, shown in Figure 5, in the present embodiment, each the hall sensing device in the Hall array sensor of upright position comprises the reseting sensor H corresponding to gravity pendulum center position ₀And be positioned at reseting sensor H ₀Two groups of both sides well-distributeds, every group is respectively two, i.e. H ₁And H ₂When vehicle driving up or descending, or when causing that because of load variations the vehicle body elevation angle changes, upright position Hall array sensor is because gravity pendulum approaching, thus induction detect auto body tilt forward and back angle (it is 1.5 degree that initial angle is set).In like manner, upright position Hall array sensor can be respectively to the position detection signal coldest days of the year end, and comprising a vertical reset signal, setting tilts forward and back maximum angle and is respectively 12 degree, and is provided with spacing.It is interior Anywhere that upright position Hall array sensor can be installed in car.

Referring to Fig. 7, the electromagnetic position follow mechanism of headlight support is to fixedly install servo-actuated permanent magnet 9 on the headlight support, control to such an extent that each electromagnet 10 of electricity condition is arranged on the pedestal that connects firmly with vehicle frame by multilevel controller, every electromagnet 10 is on separately the position.By the Multistage Control signal of multilevel controller output make electromagnet 10 on the correspondence position electric, headlight 1 will servo-actuated permanent magnet 9 with rotate on cooresponding angle position the servo-actuated of realization electromagnetic position under the magnetic action between the electromagnet under the electricity condition.The fulcrum C of upright position follow-up system and steering position follow-up system is on the same position, and its turning cylinder is vertical mutually.

Referring to Fig. 8, servo-actuated reset locking mechanism is set, be that tail end at headlight 1 is provided with concave surface restoring board 4, the center of restoring board 4 has taper uropore 3, with taper uropore 3 is lock hole, electromagnetic locking mechanism is set on the correspondence position, and the ejection state of the armature 2 in the electromagnetic locking mechanism can be used as stop pin and is inserted in the lock hole.

Referring to Fig. 6, binary channel two dimension multilevel controller is according to turning to/two-dimensional position information that the upright position sensor transmits, and output corresponding driving electric current orders about the electromagnetic position follow mechanism and follows action.

Referring to Fig. 9, monostable trigger with the ic 555 composition, when headlight is closed, the mu balanced circuit of Yin Ben device is controlled by the headlight switch, close headlight and just close this device, obtain a lower edge trigging pulse at 2 ends, monostable trigger overturns in short-term, at 3 ends output high level, make T ₀₁And T ₀₂Conducting, and electromagnet K in closing again, reset back after delaying time 1 to 2 second ₀Action impels during headlight resets back, and this part circuit is by the Vehicle Power direct supply at this moment.When this follow-up mechanism is worked, as reseting sensor H ₀Detect corresponding position signal, then T ₀₁Conducting, K ₀Action makes headlight dynamically be in go back to middle position.

When follow-up system was closed, the electromagnet in the shown in Figure 8 two-dimentional reset locking mechanism discharged, and armature 2 makes headlight 1 obtain the component F that resets shown in Fig. 8 (b) under the effect of spring.Reset component F with reset back in electromagnet K ₀Combined action under, headlight 1 resets to position shown in Fig. 8 (c); Armature 2 inserts in the tapered uropore of headlight 1 simultaneously, and with the locking of two-dimensional electromagnetic Stellungsservosteuerung, Fig. 8 (a) is depicted as unlock state.

The startup of follow-up system with close by the control of the original headlight switch of vehicle.An independent switch is set simultaneously, can closes the binary channel multilevel controller at any time, promptly close follow-up system, the needs when preventing the interference of unforeseen circumstances and extraordinary circumstances.After follow-up system is closed, during headlight resets back, identical with common fixed car light performance.

In order to improve functional reliability, this device is by mu balanced circuit (output voltage 9V) power supply, can normal operation when the 10.5V～14V range to guarantee input voltage.

Claims

1, a kind of multi-stage stepping position follower headlight system, it is characterized in that steering position sensor and upright position sensor being set with car, setting is by the two-dimentional headlight support of electromagnetic position follow mechanism control, and automotive steering angle and uphill/downhill motoring condition are converted to the Multistage Control signal respectively in steering position sensor and upright position sensor; Receive the Multistage Control signal and export the following position control signal of electromagnetic position follow mechanism with the multilevel signal controller.

2, multi-stage stepping position follower headlight according to claim 1 system, it is characterized in that described steering position sensor adopts steering position Hall array sensor, the setting of described steering position Hall array sensor is to be the center with steering box center of turn (B), the pickup arm (5) that setting is rotated with steering box, the front end of pickup arm (5) is permanent magnetism end (6), in the slewing area of pickup arm (5), each hall sensing device in the steering position Hall array sensor is set, forms the turn sign of correspondence position with the permanent magnetism end (6) and the hall sensing device on the correspondence position of pickup arm.

3, multi-stage stepping position follower headlight according to claim 1 system, it is characterized in that described upright position sensor adopts upright position Hall array sensor, the setting of described upright position Hall array sensor comprises that the bottom is the gravity pendulum (7) of permanent magnetism tup (8), in the hunting range of gravity pendulum (7), each hall sensing device in the Hall array sensor of upright position is set, with the vertical angle signal in front and back on the composition of the Hall array senser element on permanent magnetism tup (8) and the correspondence position correspondence position.

4, multi-stage stepping position follower headlight according to claim 1 system, the electromagnetic position follow mechanism that it is characterized in that described headlight support is that servo-actuated permanent magnet (9) is set on the headlight support, control to such an extent that each electromagnet (10) of electricity condition is arranged on the pedestal that connects firmly with vehicle frame by the multilevel signal controller, every electromagnet (10) is on separately the angle position.

5, multi-stage stepping position follower headlight according to claim 1 system, it is characterized in that being provided with servo-actuated reset locking mechanism, tail end at headlight (1) is provided with concave surface restoring board (4), the center of restoring board (4) has taper uropore (3), with taper uropore (3) is lock hole, electromagnetic locking mechanism is set on the correspondence position, and the armature in the electromagnetic locking mechanism (2) is inserted in the lock hole as stop pin after the electromagnet that resets (K) release, retracing spring (11) eject.