CN105459846A - Forklift and speed control method and device thereof - Google Patents

Forklift and speed control method and device thereof Download PDF

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Publication number
CN105459846A
CN105459846A CN201410462603.3A CN201410462603A CN105459846A CN 105459846 A CN105459846 A CN 105459846A CN 201410462603 A CN201410462603 A CN 201410462603A CN 105459846 A CN105459846 A CN 105459846A
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angular interval
fork truck
pendulum angle
knob
rotational steps
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CN201410462603.3A
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CN105459846B (en
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冯文华
张广松
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BYD Co Ltd
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BYD Co Ltd
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Abstract

The invention discloses a speed control method of a forklift. The method includes the steps that a swinging angle signal is generated according to the swinging angle of an operating handle; the angle section where the swinging angle is located is determined according to the swinging angle signal, and the swinging angle of the operating handle of the forklift includes multiple angle sections; the rotating amplitude of an accelerating knob in the forklift is detected; and the running speed of the forklift is controlled according to the swinging angle signal, the angle section where the swinging angle is located and the rotating amplitude of the accelerating knob. By means of the speed control method of the forklift, the forklift can be controlled to start smoothly under the conditions that the swinging angle of the operating handle is quite small and the rotating amplitude of the accelerating knob is the maximum, the running speed of the forklift is limited according to the swinging angle of the operating handle, and therefore the potential safety hazard that the forklift pulls a driver to run is effectively avoided. The invention further discloses a speed control device of the forklift and the forklift comprising the speed control device of the forklift.

Description

Fork truck and method for control speed thereof and speed control unit
Technical field
The present invention relates to technical field of vehicle, particularly a kind of method for control speed of fork truck, a kind of speed control unit of fork truck and a kind of fork truck.
Background technology
In correlation technique, when operating walkie fork formula and piling the trigger rod in high fork truck, handle angle sensor exports to be opened transducing signal or closes transducing signal to master controller, and then master controller carries out two kinds of different operations respectively according to opening transducing signal or closing transducing signal, particularly, master controller controls drive motor respectively " turn " or " not turning " according to opening transducing signal or closing transducing signal.
The defect that correlation technique exists is: the chaufeur piling high fork truck due to walkie fork formula is that walking is followed and operated fork truck after fork truck, and trigger rod has the length of about 1 meter, therefore, even if under trigger rod down beats very low-angle situation, the speed of a motor vehicle of fork truck still can reach the highest.The process that this speed of a motor vehicle rises does not cushion, and causes fork truck to be started to walk steady not.And if now will speed up knob to be screwed into maximum words, fork truck will reach the max speed very soon, and chaufeur due to inertia be not also able to do in time with the max speed of fork truck walking come keep synchronous with fork truck, thus easily occur that fork truck hauls the situation of chaufeur race, and in such cases, chaufeur easily carries out maloperation and causes safety misadventure to occur.Therefore, need to improve correlation technique.
Summary of the invention
Object of the present invention is intended to solve one of above-mentioned technical matters at least to a certain extent.
For this reason, one object of the present invention is the method for control speed proposing a kind of fork truck, the method for control speed of this fork truck can not only start, brake fork truck, and can when trigger rod down beat very low-angle and accelerate knob be screwed into maximum, control fork truck gentle start and limit the maximum travelling speed of fork truck, thus effectively solving fork truck and haul the potential safety hazard that chaufeur runs.
Another object of the present invention is the speed control unit proposing a kind of fork truck.
Another object of the present invention is to propose a kind of fork truck.
For achieving the above object, one aspect of the present invention embodiment proposes a kind of method for control speed of fork truck, and the method for control speed of this fork truck comprises the following steps: the pendulum angle according to described operating handle generates pendulum angle signal; Determine the angular interval at described pendulum angle place according to described pendulum angle signal, wherein, the pendulum angle of described forklift operator handle comprises multiple angular interval; Detect the rotational steps accelerating knob in described fork truck; And the moving velocity of described fork truck is controlled according to the angular interval at described pendulum angle signal, described pendulum angle place and the rotational steps of described acceleration knob.
The method for control speed of the fork truck that the embodiment of the present invention proposes is after generating pendulum angle signal according to the pendulum angle of operating handle, according to the angular interval at pendulum angle signal determination pendulum angle place, and after the rotational steps accelerating knob being detected in fork truck, finally control the moving velocity of fork truck according to the angular interval at pendulum angle signal, pendulum angle place and the rotational steps of acceleration knob.The method for control speed of this fork truck can not only be started by the pendulum angle of operating handle, brake fork truck, and can when the pendulum angle of operating handle very little and accelerate the rotational steps of knob very large even maximum, control fork truck gentle start, and limit the maximum travelling speed of fork truck, thus efficiently solve the potential safety hazard that fork truck hauls chaufeur race.
For achieving the above object, the present invention on the other hand embodiment also proposed a kind of speed control unit of fork truck, and the speed control unit of this fork truck comprises: handle angle sensor, generates pendulum angle signal for the pendulum angle according to described operating handle; Angular interval determination module, for determining the angular interval at described pendulum angle place according to described pendulum angle signal, wherein, the pendulum angle of described forklift operator handle comprises multiple angular interval; Rotational steps detection module, for detecting the rotational steps accelerating knob in described fork truck; And control module, for controlling the moving velocity of described fork truck according to the angular interval at described pendulum angle signal, described pendulum angle place and the rotational steps of described acceleration knob.
The speed control unit of the fork truck that the embodiment of the present invention proposes, pendulum angle signal is generated according to the pendulum angle of operating handle by handle angle sensor, and then angular interval determination module is according to the angular interval at pendulum angle signal determination pendulum angle place, and the rotational steps accelerating knob detected in fork truck at rotational steps detection module after, last control module controls the moving velocity of fork truck according to the angular interval at pendulum angle signal, pendulum angle place and the rotational steps that accelerates knob.The speed control unit of this fork truck can not only be started by the pendulum angle of operating handle, brake fork truck, and can when the pendulum angle of operating handle very little and accelerate the rotational steps of knob very large even maximum, control fork truck gentle start, and limit the maximum travelling speed of fork truck, thus efficiently solve the potential safety hazard that fork truck hauls chaufeur race.
For achieving the above object, further aspect of the present invention embodiment also proposed a kind of fork truck, and this fork truck comprises: the speed control unit of described fork truck; And be fixedly mounted on operating handle on fork truck and accelerate knob, described operating handle, described acceleration knob are corresponding to be respectively connected with rotational steps detection module with handle angle sensor in the speed control unit of described fork truck.
The fork truck that the embodiment of the present invention proposes, controls moving velocity by the speed control unit of fork truck.This fork truck is not only started to walk steadily, and when the pendulum angle of operating handle very little and accelerate the rotational steps of knob very large even maximum, the maximum travelling speed of fork truck is limited, thus efficiently solves fork truck and haul the potential safety hazard that chaufeur runs.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the diagram of circuit of the method for control speed of fork truck according to the embodiment of the present invention;
Fig. 2 is the division schematic diagram of multiple angular interval of the method for control speed of fork truck according to the present invention's specific embodiment;
Fig. 3 is the relation schematic diagram of the moving velocity of fork truck and the angular interval at pendulum angle and pendulum angle place when the rotational steps accelerating knob is maximum of the method for control speed of fork truck according to the present invention's specific embodiment;
Fig. 4 is the block diagram of the speed control unit of fork truck according to the embodiment of the present invention; And
Fig. 5 is the block diagram of the fork truck according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The method for control speed of fork truck, the speed control unit of fork truck and the fork truck that propose according to the embodiment of the present invention are described with reference to the accompanying drawings.
As shown in Figure 1, the method for control speed of the fork truck of the embodiment of the present invention comprises the following steps:
S1, the pendulum angle according to operating handle generates pendulum angle signal.
Particularly, the fork truck of the embodiment of the present invention can pile high fork truck for walkie fork formula.Further, in one embodiment of the invention, can come to generate pendulum angle signal according to the pendulum angle of operating handle by analog quantity handle angle sensor.Particularly, in one embodiment of the invention, can be analog quantity handle angle sensor by the switching value handle angle replacing sensor in existing fork truck.
S2, according to the angular interval at pendulum angle signal determination pendulum angle place, wherein, the pendulum angle of forklift operator handle comprises multiple angular interval.
S3, detects the rotational steps accelerating knob in fork truck.
S4, controls the moving velocity of fork truck according to the angular interval at pendulum angle signal, pendulum angle place and the rotational steps of acceleration knob.
It should be noted that, can by the master controller in fork truck according to the angular interval at pendulum angle signal, pendulum angle place with accelerate the rotating speed that the rotational steps of knob controls drive motor, to control the moving velocity of fork truck.Need to further illustrate, when the rotational steps accelerating knob is maximum, the angular interval by pendulum angle signal and pendulum angle place decides by the moving velocity of fork truck.
Particularly, in one embodiment of the invention, multiple angular interval can be that the first angular interval is to the 4th angular interval.Particularly, in one embodiment of the invention, when accelerate the rotational steps of knob and be maximum and the angular interval at pendulum angle place be the first angular interval or the 4th angular interval time, the moving velocity controlling fork truck is zero, and namely the first angular interval and the 4th angular interval are that the braking of fork truck is interval.Particularly, in another embodiment of the present invention, when the rotational steps accelerating knob is maximum and the angular interval at pendulum angle place is the second angular interval, the moving velocity controlling fork truck is started from scratch with the increase of pendulum angle with predetermined acceleration increase, and namely the second angular interval is the Acceleration of starting interval of fork truck.In this Acceleration of starting interval, the moving velocity of fork truck increases gradually with pendulum angle is linear, and thus fork truck can gentle start, and can according to the maximum travelling speed of pendulum angle volitional check fork truck.In addition, it should be noted that, in this Acceleration of starting interval, pendulum angle be in the second angular interval maximum angle such as 35 ° time, the moving velocity of fork truck can reach maximum speed.Particularly, in yet another embodiment of the present invention, when the rotational steps accelerating knob is maximum and the angular interval at pendulum angle place is the 3rd angular interval, controls fork truck and travel with maximum speed.
In one embodiment of the invention, the pendulum angle scope of operating handle can be 0 ° to 72 °, and when operating handle is in vertical position constantly, pendulum angle is 0 °.Further, in one particular embodiment of the present invention, as shown in Figure 2, the first angular interval is 0 ° to 5 °, and the second angular interval is 5 ° to 35 °, and the 3rd angular interval is 35 ° to 67 °, and the 4th angular interval is 67 ° to 72 °.Fig. 3 is the relation schematic diagram of the angular interval at pendulum angle in the moving velocity of fork truck when the rotational steps accelerating knob is maximum of the method for control speed of fork truck according to the present invention's specific embodiment and pendulum angle signal and pendulum angle place.
The method for control speed of the fork truck that the embodiment of the present invention proposes is after generating pendulum angle signal according to the pendulum angle of operating handle, according to the angular interval at pendulum angle signal determination pendulum angle place, and after the rotational steps accelerating knob being detected in fork truck, finally control the moving velocity of fork truck according to the angular interval at pendulum angle signal, pendulum angle place and the rotational steps of acceleration knob.The method for control speed of this fork truck can not only be started by the pendulum angle of operating handle, brake fork truck, and can when the pendulum angle of operating handle very little and accelerate the rotational steps of knob very large even maximum, control fork truck gentle start, and limit the maximum travelling speed of fork truck according to the pendulum angle of operating handle, thus efficiently solve the potential safety hazard that fork truck hauls chaufeur race.
The present invention on the other hand embodiment also proposed a kind of speed control unit of fork truck, as shown in Figure 4, the speed control unit 1 of this fork truck comprises: handle angle sensor 10, angular interval determination module 20, rotational steps detection module 30 and control module 40.Wherein, handle angle sensor 10 generates pendulum angle signal for the pendulum angle according to operating handle 50.Angular interval determination module 20 is for the angular interval according to pendulum angle signal determination pendulum angle place, and wherein, the pendulum angle of forklift operator handle comprises multiple angular interval.Rotational steps detection module 30 accelerates the rotational steps of knob 60 for detecting in fork truck.Control module 40 is for controlling the moving velocity of fork truck according to the angular interval at pendulum angle signal, pendulum angle place and the rotational steps of acceleration knob 60.
Particularly, in one embodiment of the invention, fork truck can pile high fork truck for walkie fork formula, and handle angle sensor 10 can be analog quantity handle angle sensor.Particularly, in one embodiment of the invention, can be analog quantity handle angle sensor by the switching value handle angle replacing sensor in existing fork truck.In addition, it should be noted that, control module 40 can be arranged in the master controller in fork truck, and control module 40 can control the moving velocity of fork truck by the rotating speed controlling drive motor.
It should be noted that, when the rotational steps accelerating knob 60 is maximum, the angular interval by pendulum angle signal and pendulum angle place decides by the moving velocity of fork truck.Particularly, in one embodiment of the invention, multiple angular interval can be that the first angular interval is to the 4th angular interval.Particularly, in one embodiment of the invention, when accelerate the rotational steps of knob 60 and be maximum and the angular interval at pendulum angle place be the first angular interval or the 4th angular interval time, the moving velocity that control module 40 controls fork truck is zero, and namely the first angular interval and the 4th angular interval are the braking interval of fork truck.Particularly, in another embodiment of the present invention, when the rotational steps accelerating knob 60 is maximum and the angular interval at pendulum angle place is the second angular interval, the moving velocity that control module 40 controls fork truck is started from scratch with the increase of pendulum angle with predetermined acceleration increase, and namely the second angular interval is the Acceleration of starting interval of fork truck.In this Acceleration of starting interval, the moving velocity of fork truck increases gradually with pendulum angle is linear, and thus fork truck can gentle start, and can according to the maximum travelling speed of pendulum angle volitional check fork truck.In addition, it should be noted that, in this Acceleration of starting interval, pendulum angle be in the second angular interval maximum angle such as 35 ° time, the moving velocity of fork truck can reach maximum speed.Particularly, in yet another embodiment of the present invention, when the rotational steps accelerating knob 60 is maximum and the angular interval at pendulum angle place is the 3rd angular interval, control module 40 controls fork truck and travels with maximum speed.
In one embodiment of the invention, the pendulum angle scope of operating handle 50 can be 0 ° to 72 °, and when operating handle 50 is in vertical position constantly, pendulum angle is 0 °.Further, in one particular embodiment of the present invention, the first angular interval is 0 ° to 5 °, and the second angular interval is 5 ° to 35 °, and the 3rd angular interval is 35 ° to 67 °, and the 4th angular interval is 67 ° to 72 °.
The speed control unit of the fork truck that the embodiment of the present invention proposes, pendulum angle signal is generated according to the pendulum angle of operating handle by handle angle sensor, and then angular interval determination module is according to the angular interval at pendulum angle signal determination pendulum angle place, and the rotational steps accelerating knob detected in fork truck at rotational steps detection module after, last control module controls the moving velocity of fork truck according to the angular interval at pendulum angle signal, pendulum angle place and the rotational steps that accelerates knob.The speed control unit of this fork truck can not only be started by the pendulum angle of operating handle, brake fork truck, and can when the pendulum angle of operating handle very little and accelerate the rotational steps of knob very large even maximum, control fork truck gentle start, and limit the maximum travelling speed of fork truck according to the pendulum angle of operating handle, thus efficiently solve the potential safety hazard that fork truck hauls chaufeur race.
Further aspect of the present invention embodiment also proposed a kind of fork truck, and as shown in Figure 5, this fork truck comprises: the speed control unit 1 of above-mentioned fork truck, operating handle 50 and accelerate knob 60.Wherein, operating handle 50 and acceleration knob 60 are fixedly mounted on fork truck, and operating handle 50, acceleration knob 60 are corresponding to be respectively connected with rotational steps detection module 30 with handle angle sensor 10 in the speed control unit 1 of fork truck.
The fork truck that the embodiment of the present invention proposes, controls moving velocity by the speed control unit of fork truck.This fork truck is not only started to walk steadily, and when the pendulum angle of operating handle very little and accelerate the rotational steps of knob very large even maximum, the maximum travelling speed of fork truck is limited, thus efficiently solves fork truck and haul the potential safety hazard that chaufeur runs.
Describe and can be understood in diagram of circuit or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of treater or other can from instruction execution system, device or equipment fetch instruction and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification sheets, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronics package) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM) (ROM), erasablely edit read-only memory (ROM) (EPROM or flash memory), fiber device, and portable optic disk read-only memory (ROM) (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanning to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinatory logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory (ROM), disk or CD etc.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.

Claims (10)

1. a method for control speed for fork truck, is characterized in that, comprises the following steps:
Pendulum angle according to described operating handle generates pendulum angle signal;
Determine the angular interval at described pendulum angle place according to described pendulum angle signal, wherein, the pendulum angle of described forklift operator handle comprises multiple angular interval;
Detect the rotational steps accelerating knob in described fork truck; And
The moving velocity of described fork truck is controlled according to the angular interval at described pendulum angle signal, described pendulum angle place and the rotational steps of described acceleration knob.
2. the method for claim 1, is characterized in that,
When the maximum and angular interval that is described pendulum angle place of the rotational steps of described acceleration knob be the first angular interval or the 4th angular interval time, the moving velocity controlling described fork truck is zero;
When the rotational steps of described acceleration knob is maximum and angular interval that is described pendulum angle place is described second angular interval, the moving velocity controlling described fork truck increases with predetermined acceleration with the increase of described pendulum angle; And
When the rotational steps of described acceleration knob is maximum and angular interval that is described pendulum angle place is described 3rd angular interval, controls described fork truck and travel with maximum speed.
3. method as claimed in claim 2, it is characterized in that, described first angular interval is 0 ° to 5 °, and described second angular interval is 5 ° to 35 °, and described 3rd angular interval is 35 ° to 67 °, and described 4th angular interval is 67 ° to 72 °.
4. method as claimed in claim 2, it is characterized in that, when described operating handle is in vertical position constantly, described pendulum angle is 0 °.
5. a speed control unit for fork truck, is characterized in that, comprising:
Handle angle sensor, generates pendulum angle signal for the pendulum angle according to described operating handle;
Angular interval determination module, for determining the angular interval at described pendulum angle place according to described pendulum angle signal, wherein, the pendulum angle of described forklift operator handle comprises multiple angular interval;
Rotational steps detection module, for detecting the rotational steps accelerating knob in described fork truck; And
Control module, for controlling the moving velocity of described fork truck according to the angular interval at described pendulum angle signal, described pendulum angle place and the rotational steps of described acceleration knob.
6. device as claimed in claim 5, is characterized in that,
When the maximum and angular interval that is described pendulum angle place of the rotational steps of described acceleration knob be the first angular interval or the 4th angular interval time, the moving velocity that described control module controls described fork truck is zero;
When the rotational steps of described acceleration knob is maximum and angular interval that is described pendulum angle place is described second angular interval, the moving velocity that described control module controls described fork truck increases with predetermined acceleration with the increase of described pendulum angle; And
When the rotational steps of described acceleration knob is maximum and angular interval that is described pendulum angle place is described 3rd angular interval, described control module controls described fork truck and travels with maximum speed.
7. device as claimed in claim 6, it is characterized in that, described first angular interval is 0 ° to 5 °, and described second angular interval is 5 ° to 35 °, and described 3rd angular interval is 35 ° to 67 °, and described 4th angular interval is 67 ° to 72 °.
8. device as claimed in claim 6, it is characterized in that, when described operating handle is in vertical position constantly, described pendulum angle is 0 °.
9. the device according to any one of claim 5-8, is characterized in that, described handle angle sensor is analog quantity handle angle sensor.
10. a fork truck, is characterized in that, comprising:
The speed control unit of the fork truck according to any one of claim 5-9; And
Be fixedly mounted on the operating handle on fork truck and accelerate knob, described operating handle, described acceleration knob are corresponding to be respectively connected with rotational steps detection module with handle angle sensor in the speed control unit of described fork truck.
CN201410462603.3A 2014-09-11 2014-09-11 Fork truck and method for control speed thereof and speed control unit Active CN105459846B (en)

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CN105459846B CN105459846B (en) 2016-09-21

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000075948A (en) * 1998-08-28 2000-03-14 Aichi Corp Lever operation type control unit
JP2010254171A (en) * 2009-04-27 2010-11-11 Sugikuni Kogyo Kk Running speed control method of bar handle type electric lift
CN102233827A (en) * 2010-04-22 2011-11-09 雷蒙德股份有限公司 Controlling operation of an industrial vehicle based on battery weight
CN103243772A (en) * 2013-05-08 2013-08-14 三一重机有限公司 Engineering machine and operating control system thereof
CN203573434U (en) * 2013-10-18 2014-04-30 中联重科股份有限公司 Engineering machinery and intelligent prompt system of operation of engineering machinery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000075948A (en) * 1998-08-28 2000-03-14 Aichi Corp Lever operation type control unit
JP2010254171A (en) * 2009-04-27 2010-11-11 Sugikuni Kogyo Kk Running speed control method of bar handle type electric lift
CN102233827A (en) * 2010-04-22 2011-11-09 雷蒙德股份有限公司 Controlling operation of an industrial vehicle based on battery weight
CN103243772A (en) * 2013-05-08 2013-08-14 三一重机有限公司 Engineering machine and operating control system thereof
CN203573434U (en) * 2013-10-18 2014-04-30 中联重科股份有限公司 Engineering machinery and intelligent prompt system of operation of engineering machinery

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