CN209800569U - Device for adjusting operating force of automobile clutch along with working condition - Google Patents
Device for adjusting operating force of automobile clutch along with working condition Download PDFInfo
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- CN209800569U CN209800569U CN201920441806.2U CN201920441806U CN209800569U CN 209800569 U CN209800569 U CN 209800569U CN 201920441806 U CN201920441806 U CN 201920441806U CN 209800569 U CN209800569 U CN 209800569U
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Abstract
The utility model discloses an automobile clutch operating force is along with operating mode adjusting device, include: the pedal and the parallel push rod are hinged with the middle part of the pedal at one end; one end of the connecting rod is hinged with the other end of the parallel push rod, and the other end of the connecting rod is provided with a first mounting hole; the cylinder is fixed on the vehicle body, the cylinder is symmetrically provided with bulges, and the bulges are oppositely provided with first through holes; a connecting pin rotatably disposed in the first through-hole; one end of the electric push rod is provided with a second mounting hole, and the length of the electric push rod can be adjusted; the connecting rod is fixedly sleeved in the middle of the connecting pin through the first mounting hole, and the electric push rod is sleeved in the middle of the connecting pin through the second mounting hole; one end of the guide rod is hinged with the other end of the electric push rod; the spring baffle comprises a central shaft and a rectangular steel plate; the central shaft vertically penetrates through the rectangular steel plate, and one end of the central shaft is hinged with the guide rod; and the spring is sleeved at the other end of the central shaft, one end of the spring is abutted against the rectangular steel plate, and the other end of the spring is abutted against the surface of the structural member of the vehicle body.
Description
Technical Field
The utility model relates to a car controlling device field, concretely relates to automobile clutch operating force is along with operating mode adjusting device.
Background
sports cars and super sports cars with multi-cylinder large-displacement engines are popular among automobile drivers due to strong power and flexible control. At present, most super sports cars adopt automatic transmission, so that the driving comfort and convenience of the super sports cars are improved. However, since the shift logic of the automatic transmission is generally designed and fixed in the controller by a developer, the requirements of drivers with different driving preferences cannot be met, and the manual transmission has the characteristics of reliable work, high transmission efficiency and full driving pleasure. Sports cars or sport cars that match manual transmissions are not uncommon and still have a large number of branches.
However, because the output torque range of the multi-cylinder large-displacement engine is wide, in order to ensure that the clutch can reliably transmit the engine torque when the power is output by large torque, the pressing force of the clutch is designed to be larger, the larger pressing force inevitably causes larger operating force, and the starting condition is particularly the same. This not only causes the driver to frequently step on the pedal for a long time to generate driving fatigue, but also makes it difficult for the driver to realize accurate semi-interlocking control of the clutch position, thereby increasing the difficulty in accurately controlling the torque transmitted from the engine to the wheels, which makes it difficult for an automobile with a multi-cylinder high-power engine to control the starting speed or parking speed when starting at a low speed or parking in a narrow parking space. On the other hand, the difficulty of accurately controlling the height of the clutch pedal by a driver is increased, the safety accidents of collision and rubbing are easy to happen in a narrow area, and the parking efficiency is also reduced.
On the other hand, in order to reduce the operation burden of a driver, the boosting ratio of a common clutch control mechanism is selected to be larger, which obviously reduces the operation force requirement in a low-speed starting working condition, but also causes that the pedal force is smaller and the foot feeling is lacked when the automobile is started and shifts during driving, and under the condition of limited clutch stroke, the proper clutch combination degree is difficult to find out to control the required clutch pedal height, the hand and foot coordination during shifting is difficult to be well handled by the driver, the shifting speed is influenced to a certain extent, and the clutch control mechanism is a very key problem for performance vehicles and sports cars.
Based on the reasons, the device capable of adaptively adjusting the operating force of the clutch pedal along with the running condition of the automobile is designed and developed for the large-displacement high-power manual transmission sports car, and the device has important practical significance.
some prior art patents are directed to solving clutch actuation portability problems, such as:
1. The boosting force described in chinese patent "apparatus for reducing clutch pedal force" (publication No. CN104723874A) is achieved by a switching lever in a pedal member. When the pedal arm rotates, the switching lever rotates along with the pedal arm in a state where the switching lever comes into contact with the pedal arm, thereby providing assist force.
2. Chinese patent 'automobile clutch pedal electric control power assisting device' (publication number: CN103758893A) drives a clutch pedal through a direct current motor to provide power assisting. After the direct current gear motor is electrified, the clutch pedal is driven to rotate at a certain speed through the coupler and the spline pin shaft, and the clutch separation operation is completed.
In the above-mentioned patent, mechanical type helping hand system simple structure, the dependable performance and the stability of transmission power, but can't realize the helping hand along with the operating mode adjustment, this and actual conditions need under the different automobile driving operating mode, the demand of different helping hands is inconsistent. The electric control power assisting device has small volume occupancy rate and flexible output power assisting torque, can basically meet the power assisting requirement of a clutch pedal of an automobile with a high-power engine, but considers that the power transmission of an electric control structure is unstable and is not more reliable than the traditional mechanical mode to a certain extent, so the mode still needs to be improved.
In addition, the above patents only consider how to reduce the clutch operating force, but in fact, the automobile needs a certain feeling of the clutch operating foot under some operating conditions. The foot feel and the operating force have a certain linear relation, so that the operating force is expected to be slightly larger under certain working conditions of the automobile that the clutch combination degree needs to be accurately controlled through the foot feel, and the control precision of a driver is improved conveniently; while some operating conditions require a relatively light clutch operating force characteristic when the clutch is kept at a trampling height for a long time. Therefore, the above patents can not meet the requirements of drivers on the adjustment of the operating force characteristics of the automobile clutch under different speeds and different gear shifting working conditions.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve present technical weak point, provide an automobile clutch operating force along with operating mode adjusting device, satisfy the demand of adjusting automobile clutch operating force characteristic under different speed of a motor vehicle, the different operating modes of shifting.
The utility model discloses a another purpose is through the automatically controlled regulation of variable drive ratio lever mechanism realization manipulation helping hand ratio, and the reliability is strong.
The utility model provides a technical scheme does: an automobile clutch operating force adjusting device along with operating conditions, comprising:
a pedal, and
one end of the parallel push rod is hinged with the middle part of the pedal;
One end of the connecting rod is hinged with the other end of the parallel push rod, and the other end of the connecting rod is provided with a first mounting hole;
the vehicle body structure comprises a cylinder, a first connecting piece and a second connecting piece, wherein the cylinder is fixed on a vehicle body, bulges are symmetrically arranged on the cylinder, and first through holes are oppositely arranged on the bulges;
A connecting pin rotatably disposed in the first through-hole;
the electric push rod is provided with a second mounting hole at one end, and the length of the electric push rod can be adjusted;
the connecting rod is fixedly sleeved in the middle of the connecting pin through the first mounting hole, and the electric push rod is fixedly sleeved in the middle of the connecting pin through the second mounting hole;
One end of the guide rod is hinged with the other end of the electric push rod;
a spring retainer comprising a central shaft and a rectangular steel plate;
The central shaft vertically penetrates through the rectangular steel plate, and one end of the central shaft is hinged with the guide rod;
and the spring is sleeved at the other end of the central shaft, one end of the spring is abutted against the rectangular steel plate, and the other end of the spring is abutted against the surface of the structural member of the automobile body.
Preferably, the method further comprises the following steps:
the vehicle-mounted power supply is connected with the electric push rod;
The electric control unit comprises a Hall vehicle speed sensor, and the Hall vehicle speed sensor is arranged at a wheel;
The electric control unit is electrically connected with the Hall vehicle speed sensor, the vehicle-mounted power supply and the electric push rod to control the length of the electric push rod.
Preferably, the method further comprises the following steps:
a key groove provided in the middle of the connecting pin;
A long key disposed within the keyway;
wherein the long key is matched in the first mounting hole and the second mounting hole.
Preferably, the method further comprises the following steps:
Two pin holes respectively arranged at two ends of the connecting pin;
the pin is arranged in the pin hole in a matching way;
And the gasket is sleeved on the connecting pin and is positioned between the bulge and the pin.
preferably, the method further comprises the following steps:
The shell of the fixed sleeve is fixed on the structural member of the automobile body;
Wherein one end of the central shaft is slidably supported within the fixed sleeve.
it is preferable that the first and second liquid crystal layers are formed of,
The electric push rod is a cylindrical stepped shaft and comprises a telescopic rod and a fixed shaft;
wherein the telescopic rod is matched in the fixed shaft in a sliding way.
it is preferable that the first and second liquid crystal layers are formed of,
the length of the key groove is not larger than the distance between the protrusions.
It is preferable that the first and second liquid crystal layers are formed of,
The electric control unit also comprises a singlechip and two relays;
the signal output ports of the single chip microcomputer and the Hall vehicle speed sensor are connected with a port P0.0 of the single chip microcomputer;
The relay I/O is connected with ports P1.0 and P1.1 of the singlechip;
And the VCC of the relay is connected with the anode of the vehicle-mounted power supply.
it is preferable that the first and second liquid crystal layers are formed of,
the single chip microcomputer is an AT89C51 chip.
It is preferable that the first and second liquid crystal layers are formed of,
the electric push rod level lines are respectively connected with 5V and GND, and the signal lines are respectively connected with P0.1 and P0.2 ports of the single chip microcomputer.
Beneficial effect:
1) Clutch manipulation force along with operating mode adjusting device can realize high-power engine car starting speed or the good control of speed of parking, scurrying the condition before when avoiding starting, when satisfying starting or parking security, effectively alleviate driver fatigue, improve and drive the travelling comfort.
2) clutch manipulation force along with operating mode adjusting device can realize that high-power engine car has certain pedal force when the subsequent operation of shifting of starting, reinforcing driver's feel of the foot is convenient for master clutch combination degree to promote the realization of the action of shifting fast, with reduction power off-time, improve dynamic property.
3) clutch manipulation force adopt variable transmission ratio lever mechanism to realize the automatically controlled regulation of manipulation helping hand ratio along with operating mode adjusting device, adjusting device is small, the quality is light, the good reliability. The automobile part light weight automobile meets the requirements of reducing automobile manufacturing cost and automobile energy consumption of the existing automobile parts, and is wide in application range. And can later stage installation, require lowly, be convenient for maintenance and maintenance to the automobile body structure change.
4) clutch operating force after adopting electric mode to adjust the drive ratio along with operating mode adjusting device, actuating mechanism alright uninstallation need not the power consumption that lasts, the automatically controlled booster unit of current clutch pedal of comparison has better energy-conserving effect.
Drawings
Fig. 1 is a system installation position diagram of the device for adjusting the operating force of the automobile clutch according to the operating condition of the automobile clutch.
fig. 2 is an overall three-dimensional view of the device for adjusting the operating force of the automobile clutch according to the present invention.
fig. 3 is a pedal three-dimensional view of the device for adjusting the operating force of the automobile clutch according to the operating condition of the automobile clutch.
Fig. 4 is a three-dimensional view of the pedal return spring of the operating force adjusting device of the automobile clutch according to the present invention.
fig. 5 is an axial exploded view of the assembly of the pedal force feedback spring, the spring baffle and the fixing sleeve of the device for adjusting the operating force of the automobile clutch along with the operating condition.
Fig. 6 is a spring baffle of the device for adjusting the operating force of the automobile clutch according to the operating condition of the automobile clutch.
Fig. 7 is an axial exploded view of the assembly of the electric push rod, the connecting pin and the long key of the device for adjusting the operating force of the automobile clutch according to the operating condition of the invention.
Fig. 8 is an assembly view of the base, the connecting pin, the long key and the gasket of the device for adjusting the operating force of the automobile clutch according to the operating condition.
fig. 9 is the electric push rod base of the automobile clutch operating force adjusting device according to the working condition.
Fig. 10 is an electric push rod of the device for adjusting the operating force of the automobile clutch according to the operating condition of the automobile clutch.
fig. 11 is a connecting pin (with a key groove) of the device for adjusting the operating force of the automobile clutch according to the present invention.
fig. 12 is a plug bolt of the device for adjusting the operating force of the automobile clutch according to the operating condition of the automobile clutch.
fig. 13 is a connecting rod of the device for adjusting the operating force of the automobile clutch according to the operating condition of the automobile clutch.
Fig. 14 is a hardware block diagram of an electric control system of the device for adjusting the operating force of the automobile clutch according to the operating condition of the automobile clutch.
fig. 15 is an electric schematic diagram of automobile clutch operating force along with operating mode adjusting device's hall vehicle speed sensor, relay and STM89C51 singlechip connection.
fig. 16 is a block diagram of the program flow of the electric control unit of the device for adjusting the operating force of the clutch of the vehicle according to the present invention.
fig. 17 is a schematic view of the operating principle of the device for adjusting the operating force of the automobile clutch according to the operating condition (starting condition).
fig. 18 is a schematic view of the operating principle of the device for adjusting the operating force of the clutch of the automobile according to the present invention (driving condition).
Detailed Description
the present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
fig. 1 shows that automobile clutch operating force is along with operating mode adjusting device system installation position picture, and fig. 2 shows that automobile clutch operating force is along with operating mode adjusting device's the three-dimensional view of totality, and is visible by above-mentioned figure, automobile clutch operating force mainly include footboard 160, parallelly connected push rod 150, electronic flexible subassembly 140, pilot rod 130, footboard reset spring 120, footboard power feedback subassembly 110 along with operating mode adjusting device.
The pedal 160 is connected with the pedal seat 180 through a pin shaft 181, and the pedal seat 180 is fixedly connected with a structural member of the automobile body, so that the pedal 160 is hung on the automobile body. In addition, the present invention retains the original clutch master cylinder 170, and the connection between the clutch master cylinder 170 and the pedal 160 adopts the hinge connection manner of the original automobile shown in fig. 1. The cylinder body of the clutch master cylinder 170 is fixedly connected with a structural member of an automobile body, a master cylinder push rod extends into the cab and is fixedly connected with the pedal 160 through an eccentric bolt, so that the movement of the pedal 160 can push the clutch master cylinder 170 to build pressure for work. The eccentric bolt is used for adjusting the initial position of the pedal. When a driver steps on the clutch pedal 160, the pedal drives the main cylinder push rod to push the clutch main cylinder 170 to move so as to increase the oil pressure in the cylinder, the outlet at the end part of the clutch pedal guides high-pressure oil into a clutch slave cylinder (in the prior art, not shown in the figure) through an oil pipe, the slave cylinder pull rod is forced to push a clutch release fork, and a release bearing is pushed forwards so as to release the clutch; when the driver releases the pedal 160, the hydraulic pressure is released, the clutch returns to the engaged state under the action of its own elastic element, the pedal returns under the pulling action of the pedal return spring 120, and the whole system returns to the original position. Additionally, automobile clutch operating force on being fixed in the auto chassis along with operating mode adjusting device's electronic flexible subassembly 140's base for support and fixed automobile clutch operating force along with operating mode adjusting device. Automobile clutch operating force also be fixed in automobile body structure along with operating mode adjusting device's footboard power feedback subassembly 110 on, play the effect of feedback force.
as shown in fig. 2 and 3, fig. 3 is a structural diagram of the pedal 160, the pedal 160 is obtained by modifying an original pedal, a through hole is added at a middle part below a hinge point of the pedal 160 and a push rod of the clutch master cylinder 170, and the through hole is connected with a pin shaft of the parallel push rod 150 through a plug bolt (shown in fig. 12) screwed into the through hole. The back of the top of the pedal is provided with a threaded hole which is connected with a pedal return spring 120 through an annular screw. As shown in fig. 4, the ring-shaped screws and the pedal return spring 120 are respectively hooked at two ends of the pedal return spring 120 on one ring-shaped screw, one ring-shaped screw is connected with a threaded hole at the back of the top of the pedal, and the other ring-shaped screw is in threaded connection with a threaded hole on the pedal seat 180.
One end of the parallel push rod 150 is hinged to the middle of the pedal 160. The other end is also hinged with an electric telescopic assembly 140 through a stop bolt (as shown in fig. 12), and the electric telescopic assembly 140 comprises an electric push rod 141, a connecting rod 142 and a mounting seat 143. As shown in fig. 9, the mounting seat 143 includes a bottom plate 143c and a cylindrical body 143b, and the cylindrical body 143b is vertically fixed above the bottom plate 143c and welded into a whole. The bottom plate 143c is fixed to the vehicle side member. The top end of the cylinder 143b is provided with a second rectangular groove, two sides of the second rectangular groove are provided with two protrusions, and the protrusions are provided with first through holes 143a relatively. As shown in fig. 12, the connecting rod 142 is a cylinder, and has a boss at one end thereof, in which a hole with a key slot is drilled, which is a connection point with the mounting seat 143, and a rectangular slot at the other end thereof, at both ends of which a through hole and a threaded hole are drilled, which is a hinge point with the parallel push rod.
As shown in fig. 8 and 11, the connecting pin 144 is rotatably disposed in the first through hole 143 a. As shown in fig. 10, the connecting pin 144 includes two pin holes 144a at both ends, a fitting portion 144b at a middle portion, and two key grooves 144c provided on a middle surface in the axial direction. A pin 146 is matingly disposed within the pin aperture 144a and a spacer 147 is disposed between the pin 146 and the boss. The long key 145 is fitted in the key groove 144c, and the first mounting hole is provided outside the connecting pin 144, and the long key 145 is fitted in the first mounting hole.
As shown in fig. 10, the electric putter 141 is a cylindrical stepped shaft, and includes a telescopic rod 141a and a fixed shaft 141 b; the telescopic rod 141a is slidably fitted in the fixing shaft 141 b. The fixed shaft 141b has a third rectangular groove and a second mounting hole 141c at one end thereof, the second mounting hole 141c is sleeved on the middle portion of the connecting pin 144, and the long key 145 is fitted in the second mounting hole 141c, and the length of the electric push rod 141 can be adjusted by controlling the controller.
as shown in fig. 7, during installation, the end of the connecting rod with the first installation hole and the end of the electric push rod with the second installation hole are placed in the second rectangular groove of the cylinder, the connecting pin 144 is inserted into the two first through holes 143a of the cylinder after the positions are set, meanwhile, the connecting pin 144 passes through the first installation hole and the second installation hole, and then, the long key 145 is inserted into the key groove 144c of the connecting pin 144 from the first through hole and passes through the first installation hole and the second installation hole. The spacer 147 is fitted over the connecting pin 144 and fixed between the cylindrical body 143b of the fixing base 143 and the pin hole 144a of the connecting pin 144. The connecting pin 144 is screwed into the first through hole 143a of the fixing seat 143, and the pin hole 144a is in interference fit with the pin 146. Therefore, the electric push rod 141 and the connecting rod 142 rotate around the connecting pin of the fixed seat 143 to realize a force transmission effect under the condition of keeping the included angle unchanged.
as shown in fig. 2, one end of the guiding rod 130 is hinged to the other end of the electric push rod 141 through a tucking bolt (as shown in fig. 12), and the other end of the guiding rod 130 is also hinged to the pedal force feedback assembly 110 through a tucking bolt (as shown in fig. 12).
as shown in fig. 2, 5 and 6, the pedal force feedback assembly 110 mainly includes: a spring 111, a spring stop 112 and a fixed sleeve 113. The spring baffle 112 comprises a central shaft and a rectangular steel plate, the rectangular steel plate is vertically arranged in the middle of the central shaft, and one end of the central shaft is hinged with the guide rod 130; the spring retainer 112 is formed by welding two first and second shafts 112a and 112c having different diameters and lengths and a rectangular steel plate 112 b. The rectangular steel plate 112b is arranged between the first shaft 112a and the second shaft 112c, pin holes for connecting other rod pieces are machined at the shaft ends of the second shaft 112c with a smaller diameter, and the shaft ends of the first shaft 112a with a larger diameter are inserted into holes of structural members of the automobile body to play a role in guiding. The fixed sleeve 113 is a hollow cylinder, the inner wall of the fixed sleeve is smooth, the fixed sleeve is in clearance fit with the second shaft 112c with a smaller pin hole diameter of the spring baffle 112, and the outer shell of the fixed sleeve 113 is fixed on a structural member of an automobile body, so that the motion guiding effect of the spring baffle 112 is achieved, and the second shaft 112c of the spring baffle 112 is allowed to translate left and right in the inner hole of the fixed sleeve. The pedal force feedback spring 111 is sleeved on a first shaft 112a with a larger diameter of the spring baffle plate 112, one end of the pedal force feedback spring 111 is in contact with a rectangular steel plate 112b in the middle of the spring baffle plate 112 for limiting, and the other end of the pedal force feedback spring 111 is in contact with the surface of the structural part of the automobile body for limiting. When a driver steps on the clutch pedal, the rotation motion of the pedal is transmitted to the spring baffle 112 through the parallel push rod 150, the connecting rod 142, the electric push rod 141 and the guide rod 130 to be converted into the linear motion of the spring baffle 112 along the axis of the sleeve 113, and then the pedal force feedback spring 111 is compressed to realize the pedal force feedback.
As shown in fig. 1, the electronic control unit 190 is mounted on the lower side of the dashboard of the vehicle, and is connected to a hall vehicle speed sensor 192 and an electric push rod 141, which are disposed near the wheels, respectively, via electric wires. As shown in the hardware block diagram of the electric control system shown in fig. 14 and the electrical schematic diagram shown in fig. 15, the electric control system of the electric putter is composed of a 12V vehicle power supply, a voltage conversion module and an electric control unit. The electric control unit consists of a singlechip, a relay and a Hall vehicle speed and revolution sensor. The singlechip use singlechip AT89C51 as an embodiment. The Hall vehicle speed sensor VCC is connected with the anode 5V of the power supply, and the GND is grounded. The signal output port of the Hall sensor is connected with a port P0.0 of the singlechip. The electric push rod is connected with the singlechip through a relay. Two relay I/O are connected with ports P1.0 and P1.1 of the single chip microcomputer, VCC of the relay is connected with a positive electrode 12V of a power supply, and GND is grounded. The normally closed ends of the two relays are respectively connected with the anode and the cathode of the power supply of the electric push rod, and the normally open ends of the two relays are connected with a 12V power supply. The electric push rod level lines are respectively connected with 5V and GND. The signal lines are respectively connected with ports P0.1 and P0.2 of the single chip microcomputer.
as shown in fig. 16, the electric control unit of the automobile clutch operating force adjusting device according to the present invention has an embedded program stored in the single chip microcomputer. The execution steps are as follows:
Firstly, reading a wheel speed signal omega of a Hall vehicle speed sensor transmitted to a singlechip through an I/O port;
The second step, according to the following formula calculate the speed of a motor vehicle value V (the utility model discloses simply adopt as follows the public indication to calculate the speed of a motor vehicle, if adopt other common methods of relying on four-wheel speed signal to calculate the speed of a motor vehicle according to the vehicle kinematics relation and do not constitute the essential innovation to this method):
V＝ωRr (1)
Wherein R isrthe rolling radius of the wheel can be approximated by the static radius of the wheel. In addition, regardless of the tire
Vehicle speed calculation error due to slippage.
Thirdly, judging the vehicle speed V and the first vehicle speed threshold value V0magnitude relation between (first vehicle speed threshold value V)0The maximum speed of the automobile can be set to 10km/h according to the maximum speed of the automobile when the transmission is in first gear for starting or is parked at low speed on site, and if V is less than or equal to V0if yes, executing the step four; otherwise, continuously judging that the vehicle speed V isWhether it is higher than the second vehicle speed threshold value V1(second vehicle speed threshold value V1The maximum speed of the common automobile can be set to 30km/h as an embodiment according to the fact that the transmission is shifted to a low gear without first gear to accelerate starting, and if V is larger than or equal to V, the maximum speed can be set to be 30km/h1If yes, executing the step five; otherwise, executing step six.
fourthly, calculating the target length l of the electric push rod according to the following formulat：
Wherein, min [ ] represents the minimum value of the two in brackets, and l represents the natural initial length of the electric telescopic rod.
Fifthly, calculating the target length l of the electric push rod according to the following formulat：
sixthly, calculating the target length l of the electric push rod according to the following formulat：
lt＝l (4)
Seventhly, the single chip microcomputer controls the electric push rod to stretch to the target length l according to the result obtained by calculation in the steptAnd then, the process is ended.
As shown in fig. 17 and 18, the operating principle of the device for adjusting the operating force of the automobile clutch according to the operating condition of the automobile clutch of the present invention is as follows:
when the vehicle runs at a certain speed, the Hall vehicle speed sensor collects a wheel rotating speed sensor (which can also be matched with a transmission gear sensor signal to jointly judge whether the vehicle is in a starting working condition or a normal running working condition, for example, when the transmission gear is switched from a neutral gear to a first gear, the vehicle is considered to be in the starting working condition, when the gear is switched from the neutral gear or any gear to other gears which are not the first gear, the vehicle is considered to be in a normal running gear shifting state, and then the length of the electric push rod is calculated according to formulas (2), (3) and (4) according to the range of the vehicle speed, as an embodiment, the utility model only adopts the wheel rotating speed sensor to judge whether the vehicle is in the starting working condition or the normal running working condition, so that the embodiment adopting the transmission gear sensor does not form a new technical content different from the utility model, the wheel rotating speed sensor signal is transmitted to the singlechip in a, the single chip microcomputer counts the time through the timer and then calculates the automobile speed, the stretching length is calculated through a formula (1), after a plurality of circulation step lengths are determined that signals are stable, pulse signals are sent to control the electric push rod to stretch or shorten to a proper length, so that the transmission ratio of the pedal power-assisted system (0.8-1.5 times of the original power assistance) is changed, the force acting on the pedal is indirectly changed, and the purpose of adjusting along with the speed is finally achieved.
When the driver does not trample the clutch pedal, be state 1, the power of trampling next makes electronic flexible subassembly 140 anticlockwise rotation, when surpassing equilibrium position (being that pilot rod 130 and electronic flexible subassembly 140's electric putter 141 are on a straight line), the change of biography power angle leads to the spring to produce the effect, becomes laborsaving by hard when the driver tramples the pedal promptly to keep clutch off-state to the effect of driver's manipulation production helping hand when reaching the car and shifting gears.
as shown in fig. 17, for the schematic view 1 of the working principle of the device for adjusting the operating force of the automobile clutch along with the operating condition, in the state 2 (starting operating condition), the rotating speed of the wheel is low and is transmitted to the low-frequency signal of the single chip microcomputer, the electric telescopic rod is in a short state, when the driver treads the front section stroke of the clutch pedal, the transmission ratio is large at the moment, and large power assistance is provided, so that the driver is not tired and hard when pedaling the clutch pedal for a long time when starting and engaging gears.
FIG. 18 is a schematic diagram of the operating principle of the operating force-dependent operating condition adjusting device of the automobile clutch shown in FIG. 2. Under state 3 (the operating mode of traveling), the wheel rotational speed is higher, gives singlechip high frequency signal, and electric telescopic handle is in longer state, and when the driver trampled the anterior segment stroke of clutch pedal, the transmission ratio was smaller this moment, provides less helping hand, makes the clutch pedal more have the feel, and the driver of being convenient for is at the quick gear shift of the operating mode of traveling short time down.
The utility model discloses an automobile clutch operating force is one set of mechatronic system along with operating mode adjusting device. The mechanical structure can change the lever ratio of the pedal power-assisted control mechanism under different working conditions, and has reliable transmission and good stability; the electric control structure can output reasonably-changed pedal boosting force along with the change of the running state of the vehicle, and the intelligence is high. The clutch can meet the light and convenient operation requirement of the clutch during low-speed starting and gear shifting, and can also meet the requirement of keeping the operation foot feeling during driving and gear shifting after starting. Compared with the traditional mode of adjusting by means of the eccentric bolt of the piston push rod of the clutch main cylinder, the adjustable power-assisted transmission ratio of the utility model has wider range and can adjust the power-assisted transmission ratio in real time along with the starting or gear-shifting driving state of the automobile; compare pure automatically controlled helping hand system, the utility model discloses can interrupt the power supply when reaching certain helping hand drive ratio and save the electric energy, have more practical meaning.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. an automobile clutch operating force adjusting device along with working conditions is characterized by comprising:
a pedal, and
One end of the parallel push rod is hinged with the middle part of the pedal;
one end of the connecting rod is hinged with the other end of the parallel push rod, and the other end of the connecting rod is provided with a first mounting hole;
The vehicle body structure comprises a cylinder, a first connecting piece and a second connecting piece, wherein the cylinder is fixed on a vehicle body, bulges are symmetrically arranged on the cylinder, and first through holes are oppositely arranged on the bulges;
A connecting pin rotatably disposed in the first through-hole;
The electric push rod is provided with a second mounting hole at one end, and the length of the electric push rod can be adjusted;
The connecting rod is fixedly sleeved in the middle of the connecting pin through the first mounting hole, and the electric push rod is fixedly sleeved in the middle of the connecting pin through the second mounting hole;
One end of the guide rod is hinged with the other end of the electric push rod;
A spring retainer comprising a central shaft and a rectangular steel plate;
The central shaft vertically penetrates through the rectangular steel plate, and one end of the central shaft is hinged with the guide rod;
and the spring is sleeved at the other end of the central shaft, one end of the spring is abutted against the rectangular steel plate, and the other end of the spring is abutted against the surface of the structural member of the automobile body.
2. The adjustment device of operating force of automobile clutch according to claim 1, further comprising:
The vehicle-mounted power supply is connected with the electric push rod;
The electric control unit comprises a Hall vehicle speed sensor, and the Hall vehicle speed sensor is arranged at a wheel;
the electric control unit is electrically connected with the Hall vehicle speed sensor, the vehicle-mounted power supply and the electric push rod to control the length of the electric push rod.
3. The adjustment device of operating force of automobile clutch according to claim 1, further comprising:
A key groove provided in the middle of the connecting pin;
A long key disposed within the keyway;
wherein the long key is matched in the first mounting hole and the second mounting hole.
4. The adjustment device of operating force of automobile clutch with operating condition according to claim 3, further comprising:
Two pin holes respectively arranged at two ends of the connecting pin;
the pin is arranged in the pin hole in a matching way;
and the gasket is sleeved on the connecting pin and is positioned between the bulge and the pin.
5. The adjustment device of operating force of automobile clutch with operating condition according to claim 4, characterized by further comprising:
the shell of the fixed sleeve is fixed on the structural member of the automobile body;
Wherein one end of the central shaft is slidably supported within the fixed sleeve.
6. The adjustment device of clutch operating force according to claim 5,
The electric push rod is a cylindrical stepped shaft and comprises a telescopic rod and a fixed shaft;
Wherein the telescopic rod is matched in the fixed shaft in a sliding way.
7. The adjustment device of clutch operating force according to claim 6,
the length of the key groove is not larger than the distance between the protrusions.
8. the adjustment device of clutch operating force according to claim 2,
the electric control unit also comprises a singlechip and two relays;
the signal output ports of the single chip microcomputer and the Hall vehicle speed sensor are connected with a port P0.0 of the single chip microcomputer;
the relay I/O is connected with ports P1.0 and P1.1 of the singlechip;
And the VCC of the relay is connected with the anode of the vehicle-mounted power supply.
9. The adjustment device of clutch operating force according to claim 8,
The single chip microcomputer is an AT89C51 chip.
10. The adjustment device of clutch operating force according to claim 9,
The electric push rod level lines are respectively connected with 5V and GND, and the signal lines are respectively connected with P0.1 and P0.2 ports of the single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441806.2U CN209800569U (en) | 2019-04-03 | 2019-04-03 | Device for adjusting operating force of automobile clutch along with working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441806.2U CN209800569U (en) | 2019-04-03 | 2019-04-03 | Device for adjusting operating force of automobile clutch along with working condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800569U true CN209800569U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920441806.2U Expired - Fee Related CN209800569U (en) | 2019-04-03 | 2019-04-03 | Device for adjusting operating force of automobile clutch along with working condition |
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| CN (1) | CN209800569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882527A (en) * | 2019-04-03 | 2019-06-14 | 吉林大学 | A kind of automobile clutch steering force is with Operating condition adjustment device and its control method |
-
2019
- 2019-04-03 CN CN201920441806.2U patent/CN209800569U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882527A (en) * | 2019-04-03 | 2019-06-14 | 吉林大学 | A kind of automobile clutch steering force is with Operating condition adjustment device and its control method |
| CN109882527B (en) * | 2019-04-03 | 2024-01-26 | 吉林大学 | Automobile clutch operating force along with working condition adjusting device and control method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |