CN2167885Y - Automatic control device for automobile - Google Patents
Automatic control device for automobile Download PDFInfo
- Publication number
- CN2167885Y CN2167885Y CN 93236473 CN93236473U CN2167885Y CN 2167885 Y CN2167885 Y CN 2167885Y CN 93236473 CN93236473 CN 93236473 CN 93236473 U CN93236473 U CN 93236473U CN 2167885 Y CN2167885 Y CN 2167885Y
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- meet
- speed
- circuit
- motor vehicle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000008859 change Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 101100437089 Drosophila melanogaster ATPsynO gene Proteins 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
An automatic controller for car is composed of speed sensor, electronic controller, throttle valve executor and other parts. The running condition of the automobile can be indicated in the form of lamplight; and when the vehicle runs for a long time, the constant speed automatic control can be carried out, so that the vehicle can stably run in a certain speed range. And a combination of digital technology and mechanical control. Reliable performance, easy matching with vehicles, favorable driving safety, reduced driver fatigue and improved road passing ability.
Description
The utility model relates to a kind of automobile automatic control device.
Whether now automobile all is to indicate braking mode with brake lamp, and whether vehicle in operation, and quickening or slowing down, and the degree of its acceleration and deceleration is that the speed of a motor vehicle speed that rises or descend is but without any indication.Particularly very easily cause erroneous judgement disconnected, and some take place such as car accident at night travel.And influenced the raising of traffic safety and capacity of road, when when travelling for a long time, especially when condition is exercised on the road preferably, driver's foot throttle pedal all the time controls the speed of a motor vehicle, wanting to keep the speed of a motor vehicle stable, is very very difficult, also very tired.Domestic car all is to control the speed of a motor vehicle with the foot throttle pedal at present.There is the part automobile that a kind of constant speed (go the rounds) control setup has been installed abroad, behind the closed constant speed switch of automobilist's speed of a motor vehicle on request, just can regulate throttle opening without accelerator pedal by the constant sped control device, vehicle is travelled with the fixing speed of a motor vehicle, in the constant speed drive process, handle and quicken or speed reducing switch, the speed constant speed drive that vehicle again can be new, also constant speed drive can be removed or recover, thereby driver's tired and unnecessary speed of a motor vehicle variation saving fuel oil can be alleviated.But, use inconvenient because operating switch is many.
The purpose of this utility model is to provide a kind of automobile automatic control device, even automobile can carry out constant sped control in motion, and can send the vehicle operating indicator signal in motion, also dangerous warning signal can be sent, the automobile automatic control device of instant vehicle speed value can be shown simultaneously with digital form.Just automobile not only can carry out the fatigue that constant sped control alleviates the driver in the process of moving, also can send automotive operation situation wigwag, also can send dangerous warning signal with the form of traffic lights flash of light, be beneficial to safe driving and when needed can the locking throttle opening, have certain antitheft effect.
The automobile automatic control device that the utility model provides: mainly partly form by car speed sensor, electronic controller and throttle gate actr etc.Mainly be by detecting instant vehicle speed signal, after electronic controller is handled, carrying out by the throttle gate actr.
At first be that car speed sensor adopts the instant vehicle speed signal of Photoelectric infrared switch collection, keystone configuration is by accompanying drawing 3 turntables 21, rotating shaft 22, and photoelectric switch 23,24 compositions such as grade go between; And, can keep the function of former mileage meter by being loaded between former car speed mileage table and the change speed gear box flexible axle interface.Driving rotating shaft 22 by change speed gear box output flexible axle rotates, also drive simultaneously mileage meter work, at this moment be installed in disk 21 in the rotating shaft 22 also along with rotation, the infrared light path of photoelectric switch 23 have 10 slotted eyes equably owing on the disk, thereby disk 21 is circled whenever by the disk break-make, the infrared light path of photoelectric switch 23 is by disconnected 10 times together, just send 10 impulse singlas, realize the detection to the speed of a motor vehicle, cable 24 usefulness connectors are connected with electronic controller.
Electronic controller is mainly by the A/D converting unit, and interface unit, constant voltage power suspply and functional switch etc. are partly formed.It is to convert the simulation vehicle speed signal to the octet signal that the A/D converting unit mainly acts on, mainly by Ic
2(556 dual time base), Ic
3-2, Ic
3-3, Ic
3-4, Ic
4(74LS590 eight-digit binary number counting machine band is deposited output) and peripheral cell are formed, by Ic
2The time-base signal that produces is through Ic
3-2, Ic
3-3, Ic
3-4, and the effect of R, C, Ic
4To the vehicle speed pulse signal-count of input, deposit back output octet signal, be instant speed of a motor vehicle digital signal V, realized the A/D conversion.By adjusting the period T that RP changes time-base signal, can adapt to the measurement requirement of different automobile types, make displayed value consistent with actual value.T=3600/Mn(S), M is this type car mileometer soft shaft revolutions per hour when 1Km/n in the formula.The at present domestic 624:1 that has commonly used, 960:1,1000:1 etc. are several, and n is disk revolution output pulse number during 1 week in the car speed sensor, is 10 at this.
It is to keep desired vehicle speed data when constant sped control that speed of a motor vehicle holding unit mainly acts on.By Ic
5(74LS373) constitute, be subjected to Ic
11(EPROM2764) control; Work as Ic
5 11Input and output were led directly to when pin was " 1 ", latched the data of having imported during for " 0 ", had promptly kept desired vehicle speed data, directly sent into central processing unit as the vehicle speed value V that sets
O
Central processing unit is by IC
6-IC
11And peripheral cell constitutes IC
6, IC
7, IC
8And peripheral cell constitutes speed of a motor vehicle change detecting circuit, IC
6Data input pin, IC
7The A group is input end, IC relatively
9A wire A
8-A
15, IC
10A wire A
0-A
7Respectively with A/D conversion unit circuit IC
4Eight bit data mouth Q
0-Q
7Corresponding connection, IC
8Mouth and IC
7The relatively corresponding connection of input end of B group, IC
61 pin ground connection, IC
71 pin meets IC
89 pin, IC
719 pin meet IC
82 pin and R
11, R
11Another termination C
9And IC
3-5 input ends, C
9Other end ground connection, IC
3-5With IC
3-6Meet IC after the series connection
611 pin, IC
8And the peripheral cell formation can heavily trigger monostable circuit, IC
812 pin, 13 pin meet IC respectively
1125 pin and 3 pin, IC
9, IC
10, IC
11Be EPROM, have the required total data of function, its A wire is made signal input part, and data line is made signal output part, IC
9A wire A
0-A
7With speed of a motor vehicle holding unit IC circuit
5Data output end Q
0-Q
7Corresponding connection, IC
911 pin meet R
30, R
30Another termination BG
6The b utmost point, BG
6The c utmost point is through R
26Meet Vcc, BG
6The e utmost point meets display unit read-out, IC
912 pin meet display unit circuit IC
134 pin, IC
913 pin connect output interface circuit, IC
915 pin-18 pin meets IC
1110 pin-7 pin, IC
919 pin meet IC
1124 pin, IC
10Data output end D
0-D
7Connect display unit circuit BCD input end, IC
114 pin meet IC
13 pin, IC
1121 pin meet A/D conversion unit circuit IC
29 pin, IC
1123 pin, 2 pin, 6 pin, 5 pin connect the input interface circuit optocoupler respectively, and respectively through R
18-R
21Ground connection, IC
1111 pin connect speed of a motor vehicle holding unit IC circuit
511 pin, IC
1112 pin connect display unit circuit, IC
1113 pin, 15 pin, 16 pin meet output interface circuit and display unit circuit, IC respectively
1117 pin are through C
13Meet IC
121 pin, 13 pin, R
22, R
22Another termination Vcc, IC
125 pin, 9 pin are connected IC respectively with output interface circuit
1212 pin are connected IC with 6 pin
122 pin are connected IC with 8 pin
124 pin, 10 pin meet Vcc.
Display unit is used to show instant vehicle speed value and for information about, mainly by Ic
13(CD4511), IC
14(CD4511), composition such as LED display.Work as Ic
11, D
1During for " 1 ", BG5 conducting TV work is also sent the clearly demarcated pulsed sound of rhythm, and the expression speed of a motor vehicle is not in the scope that can use constant sped control.
Interface unit mainly is the transmission that realizes level conversion and signal.By BG
1, optocoupler GD
1～GD
4Constitute input interface, by smart power switch TK
1～TK
6Constitute output interface, but the work of direct drive actr; V
D3Can prevent at K
1～K
3Former car brake lamp is bright when closed, causes the indication of braking mistake.Power supply unit of voltage regulation is mainly by Ic
5(7850 three-terminal voltage-stabilizing) and peripheral cell constitute, V
D9For the pulse of TVP type instantaneous pressure suppresses diode, the pulse jamming that produces to eliminate each electrical equipment action in the automobile circuit; V
D6, V
D7In order to prevent the power supply reversal connection; During normal operation, power supply is supplied with by former car ignition lock, and is supplied with by former car storage battery when using dangerous alarm and locking throttle-valve control.
Functional switch: K
1Neutral switch (closure when change-speed box places neutral gear); R
2Be clutch switch; K
3Be throttle position switch (closure when throttle opening reaches end position; K
4Be former car brake switch; S
1Be the constant speed switch; S
2Be alarm switch; S
3Be the locking switch; DK is former car ignition lock.
It is to replace manual shift joint automotive door aperture that the throttle gate actr mainly acts on.Its basic functional principle structure is seen Fig. 4, must be electric when magnet coil winding 36, promptly produce magnetic field, and armature 38 is attracted, pulling sliding hub 29 and driven gear 40 engagements; Motor output shaft drives worm screw 31 and worm gear 30 engagements, and power passes to drive wheel 26 through driven gear 40 by axle again through worm gear 30 driven gears and sliding hub 29 engagements, twines to drive cable wire 25 pulling throttle gates; But because drive motor rotating, thereby scalable throttle opening; Simultaneously self-locking action is arranged, so it is constant to make throttle gate remain on certain aperture because of worm gear; In case magnet coil 36 dead electricity, armature 28 just resets sliding hub 29 under the effect of pull back spring 39, and drive wheel 26 just becomes free gear.At this moment foot throttle pedal drive power oil drives the effect pulling throttle gate of cable wire through drive wheel 26, to regulate throttle opening.If sliding hub 29 and driven gear 40 engagements, foot throttle pedal then, uncontrollable throttle opening.
Run indicator is installed in the plastic casing with the single footlights bubble of 12V20W with automobile, and red, the green lampshade of external application is to send redness or green.
Advantage of the present utility model: be with the numeric display speed of a motor vehicle more directly perceived; With traffic lights indication automotive operation situation; Have speed of a motor vehicle control action, convenient and safe; And has a dangerous alarm effect.
Description of drawings:
Fig. 1 (a) is the utility model electronic controller schematic diagram.(1) A/D converting unit among the figure; (2) speed of a motor vehicle holding unit; (3) central processing unit; (4) display unit; (5) output interface; (6) power supply unit of voltage regulation; (7) input interface; MD is joint device door actr motor; LH is the electromagnet winding; H
1Be green light; H
2Be red light; X
1～X
6Be connector.
Fig. 1 (b) is a, b in the A/D converting unit, c each point waveform scheme drawing.RCK is Ic among the figure
4Deposit clock, positive rise is effective.R is Ic
4Counter O reset, low level is effective.
Fig. 2 (a) is an electronic controller audio-visual picture of the present utility model.(8) debugging hole among the figure; (9) constant speed mode of operation indication; (10), (11) run indicator; (12) read-out; (13) constant speed switch; (14) dangerous alarm switch.
Fig. 2 (b) is the electronic controller back view.Among the figure: (15) GDK input; (16) X
5Connector; (17) X
6Connector; (18) eliminate control K
1～K
4, (19) S
3The locking switch; (20) X
4Connector.
Fig. 2 (c) is a main element installation site scheme drawing on the electronic controller wiring board
Fig. 2 (d) is LED display band Connector Clip figure.
Fig. 3 is the utility model car speed sensor structural representation.Among the figure: (21) rotating disk; (22) rotating shaft; (23) photoelectric switch; (24) lead-in wire
Fig. 4 is the utility model throttle gate actuator structure scheme drawing.Among the figure: (25) drive cable wire; (26) drive wheel; (27) key; (28) axle; (29) sliding hub; (30) worm gear; (31) electrical motor worm screw; (32) shell; (33) screw; (34) electromagnet casing; (35) pulling claw; (36) electromagnet winding; (37) binding post; (38) armature; (39) pull back spring; (40) driven gear.
Fig. 5 is the utility model automatic control device annexation scheme drawing.(41) electronic controller among the figure; (42) storage battery; (43) joint device door actr; (44) drive cable wire; (45) carburettor; (46) Das Gaspedal; (47) Isolating Switch; (48) brake switch; (49) neutral switch; (50) flexible axle; (51) car speed sensor; A---connects former brake lamp; B---connects the first run indicator of car; C---connects tailstock run indicator; DK is former car ignition lock; S
3Be the locking switch.
A kind of automobile automatic control device of the utility model implementation adopts flexible axle that car speed sensor is connected with automobile gearbox flexible axle interface, and car speed sensor other end interface is connected with former car kilometer table with flexible axle; One switch is installed, closure when using power-transfer clutch near former car pedal of clutch; At local easily peace one fixed support of automobile cab, the throttle gate actr is fixed; Take off the attaching parts of Das Gaspedal and carburetor throttle actuating arm, the driving cable wire of throttle gate actr is connected with Das Gaspedal, throttle valve drive arm respectively, and the overcoat of cable wire fixed, appropriate location at Das Gaspedal, throttle valve drive arm is adorned a pull back spring respectively, regulates the elasticity of cable wire and can control throttle opening effectively.Stem and afterbody appropriate location at vehicle are installed red and green two kinds of indicator lamps respectively, so that other car driver's observation is to being as the criterion.Respectively each functional switch, car speed sensor, actr, storage battery are connected with connector with lead simultaneously.The locking switch is installed hidden place, also can and connect with the output relay open contact of other antitheft alarm system.Open ignition lock, the normal running vehicle operating, read-out promptly shows instant vehicle speed value, run indicator is sent the running condition signal simultaneously.Rise as the speed of a motor vehicle, then green indicating lamp sends the flashing signal relevant with speed of a motor vehicle escalating rate; Descend as the speed of a motor vehicle, then red indicating light sends the flashing signal relevant with speed of a motor vehicle rate of descent; Do not change as the speed of a motor vehicle, then two kinds of indicator lamps are all bright.Open dangerous alarm switch S
2, run indicator is sent 2～3 times/second flashing signal.When the speed of a motor vehicle reaches desired vehicle speed value, closed constant speed switch S
1, promptly configuring the speed of a motor vehicle and entered the constant speed mode of operation, the read-out indicator lamp is lighted simultaneously, this moment, right crus of diaphragm can leave Das Gaspedal, the throttle gate actr will be carried out the instruction of electronic controller, replace the manual shift throttle opening, make vehicle stable travelling in the preset vehicle speed scope.If reset the speed of a motor vehicle, can close the constant speed switch S
1, when pin is handled Das Gaspedal and made the speed of a motor vehicle reach desired vehicle speed value, open the constant speed switch S again
1Get final product.When taking brake measure or depress clutch pedal or change-speed box when placing neutral gear or throttle gate to reach limit aperture position, and as the low 50Km/n of the speed of a motor vehicle, or when being higher than 130Km/n, all will cancel the constant sped control function.If open the locking switch S
3, the magnetic clutch of throttle gate actr gets electric work, and throttle gate is locked at certain position, manually can't control throttle opening with Das Gaspedal, thereby prevents that the random step on the gas pedal of unrelated person has certain antitheft effect.
The electronic devices and components of the electronic control part of the utility model automatic control device are installed in the circuit board, and are fixed in the plastic casing of cuboid among Fig. 2 (a).But the relevant electric equipment of power utilization automobile 12V direct supply output direct control.Shell of electronic controller adopts the die casting of ABS engineering plastics to form, and character is printed on the panel.Housing divides upper and lower covers two parts, and loam cake and back are one, and lower cover and front panel are one, and read-out is housed in the front panel.While operating switch S
1, S
2Be directly installed on the PC board with the input and output connector, be convenient to connect.Two parts up and down of shell are connected and fixed with screw.Circuit part adopts conventional element, and its core cell mainly utilizes three, and (EPROM2764) large scale digital memory deposits certain data in and realizes logic function for EPROM27512, EPROM2716.By detecting speed of a motor vehicle variable signal, after treatment, indicate the automotive operation situation by stem and afterbody indicator lamp with the form of flash of light, overcome present automobile and had only brake lamp, do not move indicator signal and be difficult to accurately judge the shortcoming of Vehicular behavior, by observing the situation of change of traffic lights, just can judge the running condition of vehicle easily, also the light indicating signal of providing convenience for other car chaufeur.
The digital integrated block of the utility model digital circuit part is plugged on the socket of printed circuit board (PCB).Read-out is connected with wiring board with connector with cable.Coding schedule adopts binary encoding, adopts the programming of general-duty Programmer, before the programming memory is carried out the inspection of sky sheet, and the programming back covers silica glass window with opaque gummed paper.Also can use simultaneously the ROM of other type.Debug after all components and parts install, according to known vehicle, obtain the time-base signal period T with T=3600/Mn, the oscp input probe is connected to measured point a in the circuit, transferring RP to make this wave period is T.Also can adopt the method for road examination or stand test, start vehicle and make the speed of a motor vehicle stable when a certain value, regulate RP read-out is shown and consistent the getting final product of standard average speed indicator indication.
Throttle gate actr in the utility model adopts electrodynamic type direct current electrical motor to change anyway, slow down by the engaging and disengaging gear transferring power through worm and gear, reel by drive wheel again and drive the rotation of cable wire pulling throttle gate, thereby control and regulate throttle opening, realize speed of a motor vehicle automatic guidance.
Claims (2)
1, a kind of automobile automatic control device, constitute by car speed sensor, electronic controller, throttle gate actr, run indicator, it is characterized in that: car speed sensor is installed between change speed gear box and the car speed mileage table, be connected with electronic controller with cable, the throttle gate actr is installed between Das Gaspedal and the throttle gate, two of the throttle gate actr drive cable wire and are connected with Das Gaspedal, throttle valve drive arm respectively, the throttle gate actr is connected with lead with electronic controller, run indicator is installed in the vehicle initial and tail sections, is connected with electronic controller with lead.
2, automobile automatic control device according to claim 1, it is characterized in that: electronic controller comprises input, output interface circuit, A/D converting unit, speed of a motor vehicle holding unit, central processing unit, display unit, constant voltage power suspply, functional switch, and wherein central processing unit is by IC
6-IC
11And peripheral cell constitutes IC
6, IC
7, IC
8And peripheral cell constitutes speed of a motor vehicle change detecting circuit, IC
6Data input pin, IC
7The A group is input end, IC relatively
9A wire A
8-A
15, IC
10A wire A
0-A
7Respectively with A/D conversion unit circuit IC
4Eight bit data mouth Q
0-Q
7Corresponding connection, IC
6Mouth and IC
7The relatively corresponding connection of input end of B group, IC
61 pin ground connection, IC
71 pin meets IC
89 pin, IC
719 pin meet IC
82 pin and R
11, R
11Another termination C
9And IC
3-5Input end, C
9Other end ground connection, IC
3-5With IC
3-6Meet IC after the series connection
611 pin, IC
8And the peripheral cell formation can heavily trigger monostable circuit, IC
812 pin, 13 pin meet IC respectively
1125 pin and 3 pin, IC
9, IC
10, IC
11Be EPROM, have the required total data of function, its A wire is made signal input part, and data line is made signal output part, IC
9A wire A
0-A
7With speed of a motor vehicle holding unit IC circuit
5Data output end Q
0-Q
7Corresponding connection, IC
911 pin meet R
30, R
30Another termination BG
6The b utmost point, BG
6The c utmost point is through R
26Meet Vcc, BG
6The e utmost point meets display unit read-out, IC
912 pin meet display unit circuit IC
134 pin, IC
913 pin connect output interface circuit, IC
915 pin-18 pin meets IC
1110 pin-7 pin, IC
919 pin meet IC
1124 pin, IC
10Data output end D
0-D
7Connect display unit circuit BCD input end, IC
114 pin meet IC
13 pin, IC
1121 pin meet A/D conversion unit circuit IC
29 pin, IC
1123 pin, 2 pin, 6 pin, 5 pin connect the input interface circuit optocoupler respectively, and respectively through R
18-R
21Ground connection, IC
1111 pin connect speed of a motor vehicle holding unit IC circuit
511 pin, IC
1112 pin connect display unit circuit, IC
1113 pin, 15 pin, 16 pin meet output interface circuit and display unit circuit, IC respectively
1117 pin are through C
13Meet IC
121 pin, 13 pin, R
22, R
22Another termination Vcc, IC
125 pin, 9 pin are connected IC respectively with output interface circuit
1212 pin are connected IC with 6 pin
122 pin are connected IC with 8 pin
124 pin, 10 pin meet Vcc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236473 CN2167885Y (en) | 1993-03-20 | 1993-03-20 | Automatic control device for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236473 CN2167885Y (en) | 1993-03-20 | 1993-03-20 | Automatic control device for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2167885Y true CN2167885Y (en) | 1994-06-08 |
Family
ID=33811645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93236473 Expired - Fee Related CN2167885Y (en) | 1993-03-20 | 1993-03-20 | Automatic control device for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2167885Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083750A (en) * | 2018-06-29 | 2018-12-25 | 北京长城华冠汽车技术开发有限公司 | Throttle opening automatic control system and autocontrol method |
-
1993
- 1993-03-20 CN CN 93236473 patent/CN2167885Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083750A (en) * | 2018-06-29 | 2018-12-25 | 北京长城华冠汽车技术开发有限公司 | Throttle opening automatic control system and autocontrol method |
| CN109083750B (en) * | 2018-06-29 | 2020-11-06 | 北京长城华冠汽车技术开发有限公司 | Automatic control system and automatic control method for opening of throttle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |