CN110001397B - Anti-misstep safety device for automobile accelerator pedal and operation method thereof - Google Patents
Anti-misstep safety device for automobile accelerator pedal and operation method thereof Download PDFInfo
- Publication number
- CN110001397B CN110001397B CN201910346183.5A CN201910346183A CN110001397B CN 110001397 B CN110001397 B CN 110001397B CN 201910346183 A CN201910346183 A CN 201910346183A CN 110001397 B CN110001397 B CN 110001397B
- Authority
- CN
- China
- Prior art keywords
- accelerator pedal
- gear
- locking
- automobile
- pawl
- Prior art date
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 31
- 230000002265 prevention Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 4
- 206010039203 Road traffic accident Diseases 0.000 abstract description 13
- 238000013461 design Methods 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 12
- 230000001133 acceleration Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000035484 reaction time Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000012938 design process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012887 quadratic function Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Elements And Transmission Devices (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Mechanical Control Devices (AREA)
Abstract
The invention discloses a safety device for preventing an accelerator pedal of an automobile from being stepped on by mistake and an operation method thereof, wherein the device comprises a pedal stress conduction device, a transmission device, a centrifugal locking device, a locking electric sensing brake device, a front shaft for transmitting torque between the pedal stress conduction device and the transmission device, and a rear shaft for transmitting torque between the transmission device and the centrifugal locking device; the invention can detect the abnormal treading speed of the accelerator pedal, lock the accelerator pedal by using the centrifugal locking principle and link the brake system to generate braking force, thereby avoiding the occurrence of traffic accidents to the maximum extent; the invention completely adopts mechanical design, has low cost and less energy consumption, can play a role of locking the accelerator pedal when detecting that the accelerator pedal is mistakenly stepped on, and improves the safety of driving.
Description
Technical Field
The invention relates to the technical field of automobile braking, in particular to an anti-misstep safety device for an automobile accelerator pedal and an operation method thereof.
Background
With the improvement of social, economic and cultural levels, the number of motor vehicles in China is more and more, and the related data shows that the motor vehicles in China keep 2.79 hundred million vehicles, the motor vehicle drivers 3.27 million people and 40 urban automobiles keep more than 100 million vehicles by 2015; by the end of 2016, motor vehicle drivers in the country reach 3.6 hundred million people, and automobiles in 49 cities keep more than million, 18 cities have more than 2 million, and 6 cities have more than 3 million; by the end of 6 months in 2017, the number of motor vehicles in the country reaches 3.04 hundred million, and the number of motor vehicle drivers reaches 3.71 hundred million. The number of automobiles is rapidly increasing, and the rapid development of automobiles brings great convenience to people, but the traffic accidents in China rise year by year correspondingly.
In a traffic accident, accidents caused by mistakenly stepping on the accelerator pedal are all that, when people with less skilled driving skills (such as a novice driver in a training period, a female driver with poor driving feeling and the like) drive a vehicle in an emergency, the accelerator pedal is mistakenly used as a brake pedal due to high tension or other objective reasons, so that the vehicle is accelerated instantaneously, and a serious traffic accident is caused.
Because the vehicle does not have the related design of preventing the accelerator pedal from being mistakenly stepped, the driver is improperly operated, and the mistaken stepping on the accelerator pedal causes serious traffic accidents, however, the traditional accelerator pedal mistaken stepping prevention device has a little defect.
The prior accelerator pedal anti-misstep technical devices comprise the following devices: one is to utilize the thermal infrared inductor, radar wave, MCU to make up, the thermal infrared inductor is used for detecting whether there is heat source (human or animal) in the front, the radar wave is used for detecting whether there is barrier in the front of vehicle, and with the relative speed between the barrier, detect the speed of stepping on the brake pedal at the same time, every sensor transmits the data detected to MCU in the form of electrical signal, if the speed of stepping on the brake pedal is fast and short-term with the barrier in the front, the one-chip computer will judge through the analysis that this situation is stepping on by mistake, put through the brake oil pipe brake at the same time; the utility model provides an utilize retractor, locking ware, the locking means that tractive meshbelt combination formed, meshbelt one end is fixed on automobile accelerator pedal in the use, can pass through the meshbelt when trampling accelerator pedal and will trample accelerator pedal's speed and transmit for the locking ware, tramples speed when surpassing certain specific design speed as accelerator pedal, and the locking ware will lock accelerator pedal, and behind the accelerator pedal was loosened to the foot, the device will resume normal condition under the effect of retractor. The two devices have the defects that the first device is often higher in manufacturing cost, weak in applicability to complex pavements and complex in installation process; the second device adopts the meshbelt to connect, and the locking effect is sensitive inadequately, and device locking effect often has the delay.
In order to prevent the above-mentioned situation, the inventors have carefully analyzed the driving habit characteristics of such erroneous operation and have attempted to create an erroneous pedaling prevention device. When a driver mistakenly steps on the accelerator pedal, the invention can detect the abnormal stepping speed of the accelerator pedal, lock the accelerator pedal by utilizing the centrifugal locking principle and link the brake system to generate braking force, thereby avoiding the occurrence of traffic accidents to the maximum extent.
Disclosure of Invention
Aiming at the problems, the invention provides an anti-misstep safety device of an automobile accelerator pedal and an operation method thereof. The device comprises a pedal stress conduction device, a transmission device, a centrifugal locking device, a locking electric sensing brake device, a front shaft for transmitting torque between the pedal stress conduction device and the transmission device, and a rear shaft for transmitting torque between the transmission device and the centrifugal locking device;
the pedal stress conduction device comprises a rack guide rod, a first spring arranged at the upper end of the rack guide rod, a gear groove arranged at the lower end of the rack guide rod, and a gear with the same modulus and pressure angle as the gear groove;
the transmission device comprises a ratchet wheel turntable, a pawl clamped with the ratchet wheel turntable, a pawl pressing sheet for pressing the pawl on the ratchet wheel turntable, a planetary gear, a planet carrier for fixing the planetary gear, a gear ring for providing a motion track for the planetary gear and a sun gear, wherein the front shaft penetrates through the gear and the ratchet wheel turntable;
the centrifugal locking device comprises a locking wheel, gear pin grooves uniformly formed around the locking wheel, a pawl clamping groove formed in the inner side of the locking wheel, a locking device turntable arranged in the center of the centrifugal locking device, centrifugal body pawls uniformly formed around the locking device turntable, and a second spring arranged between the locking device turntable and the centrifugal body pawls, wherein the rear shaft penetrates through the sun wheel and the locking device turntable;
the locking electric sensing brake device comprises a metal ring which is wound into a circle, metal pressing sheets which are uniformly arranged around the metal ring, pressing sheet piles for fixing the metal pressing sheets and a lead, wherein the lead can form a closed loop with the pressing sheet piles, the metal pressing sheets, the metal ring, a metal rotating shaft, a locking device turntable, a centrifugal body pawl, a second spring, a locking wheel and other external circuits to enable the automobile brake device to generate braking force to stop.
The gear module is 2.5mm, and the pressure angle is 20 degrees, and the number of teeth is 10, and the tooth width is 5 mm.
The number of the gear pin grooves is 2.
The number of the centrifugal body pawls is 3.
The number of the metal pressing sheets is 3.
An operation method of a safety device for preventing an accelerator pedal of an automobile from being stepped on by mistake comprises the following steps:
(a) when an automobile accelerator pedal is stepped down, a rack guide rod is pressed down, and the rack guide rod and a gear change longitudinal force into rotating torque;
(b) the accelerator pedal is stepped down to enable the gear to rotate clockwise, the torque is transmitted to the ratchet wheel rotating disc through the central shaft, the torque is acted on the pawl due to the clockwise rotation of the ratchet wheel rotating disc, the torque is further transmitted to the planet carrier, the planetary gear is fixed on the planet carrier and can rotate along with the planet carrier, and the planetary gear can only transmit the torque to the central sun gear due to the fact that the gear ring is fixed, and the rotation angular speed is increased;
(c) the sun wheel transmits the rotation torque to the locking device turntable through the rotating shaft, the centrifugal body pawl can be thrown out by clockwise rotation of the locking device turntable, and when the rotation angular speed exceeds a certain specific value, the centrifugal body pawl can be clamped into the pawl clamping groove to be locked;
(d) after the device is locked, the conducting wire, the pressing sheet pile, the metal pressing sheet, the metal ring, the central shaft, the locking device rotary disc, the second spring, the centrifugal body pawl, the locking wheel and other external circuits form a closed loop to enable the automobile brake device to generate braking force to stop.
The principle of the invention for reducing the occurrence of traffic accidents is as follows:
in an emergency situation, the driver steps on the brake pedal faster than the driver steps on the accelerator pedal in an emergency acceleration. Generally speaking, emergency braking is performed by pressing suddenly, emergency acceleration is more emphasized by pressing deeply, and the pedal pressing speeds of the emergency braking and the emergency acceleration are greatly different. The speed of stepping on the brake pedal during emergency braking is 1.09-1.56 m/s, and the speed of stepping on the accelerator pedal during emergency acceleration is 0.28-0.58 m/s, so that when the designed locking speed of the safety device for preventing mistaken stepping on the automobile accelerator pedal is set to be 0.80-0.87 m/s, the device can better distinguish the emergency acceleration from the mistaken stepping on the accelerator pedal.
After installing this device on the vehicle that the driver drove, when running into emergency and stepping on accelerator pedal by mistake, this device mainly plays the effect in two aspects: firstly, preventing the vehicle speed from being too fast: after a driver mistakenly steps on the accelerator pedal, the device detects the mistaken stepping to lock the accelerator pedal, so that the over-high speed caused by the stepping of the accelerator pedal is prevented; the linkage automobile braking system applies braking force to the automobile, so that the effect of reducing the speed of the automobile is achieved, after the accelerator pedal is locked, the device is linked with the automobile braking system to generate braking force to enable the automobile to decelerate, even if traffic accidents cannot be avoided, the loss caused by the traffic accidents is reduced to a great extent, and the safety of drivers and passengers is guaranteed to the maximum extent.
Has the advantages that:
(1) the mechanical device has low design and use cost.
The device completely adopts a mechanical design, and compared with the conventional automobile accelerator pedal mis-treading prevention device, the device does not have various sensors, detectors and processors, so that the manufacturing cost of the device is relatively low. In addition, compared with the conventional device for preventing the accelerator pedal of the automobile from being stepped mistakenly, a large number of speed sensors are adopted to transmit the speed sensors to a processing center to analyze and judge whether the accelerator pedal is stepped mistakenly (the electric energy is always consumed in the using process), the device almost does not consume the electric energy in the using process, whether the accelerator pedal is stepped mistakenly is completely detected and judged by a mechanical method, in addition, in the actual using process, if a driver does not step the accelerator pedal mistakenly, the electric energy is not consumed (namely, the energy is not consumed in the detection process), after the driver steps the accelerator pedal mistakenly, the device enables the accelerator pedal to be locked, the braking system is linked to generate the braking force to brake or decelerate the vehicle, only a small amount of electric energy is consumed in the braking process of the vehicle, and compared with the conventional device for preventing the accelerator pedal from being stepped mistakenly, the device has low energy consumption.
(2) The device is sensitive and accurate in judgment
The device adds the planetary gear to adjust the rotating speed in the design process so as to ensure that the speed of mistakenly stepping on the accelerator pedal is consistent with the locking angular speed of the centrifugal clutch, thereby improving the accuracy of judgment. The spring on the centrifugal clutch can be replaced by a spring with a specific stiffness coefficient according to the requirement, so that the locking angular speed of the centrifugal clutch can be adjusted. Thereby making the judgment of the device more accurate.
(3) Anti-reverse ratchet ensures device operating stability
The ratchet wheel for preventing reverse torque transmission is added in the design process of the device, and the reverse torque is transmitted from the ratchet wheel in an interrupted mode, so that the device is not influenced by irrelevant torque, and the running stability of the device is guaranteed.
(4) Locking accelerator pedal linkage brake
This device can play the effect of locking accelerator pedal when detecting the mistake and stepping on accelerator pedal, moreover, this device still has the effect that linkage vehicle braking system produced the braking force, has set up dual fail-safe behind the accelerator pedal for the driver mistake, has improved the security of driving.
(5) Can be taken and placed at any time, and is convenient to install
This device is small, simple to operate, and when the driver need use this device, only need place this device and can accomplish whole installation under accelerator pedal, whole process is less than 30s, also can take off this device very fast when stopping using, and this device will bring very high feasibility for this device along with the characteristic of putting along with getting.
Drawings
FIG. 1 is a front view of the safety device with a casing for preventing the driver from stepping on the accelerator pedal of the automobile.
Fig. 2 is a left 45-degree view of the shell of the anti-misstep safety device of the automobile accelerator pedal.
Fig. 3 is a right 45-degree view of the anti-misstep safety device with a shell of the automobile accelerator pedal.
FIG. 4 is a front view of the device for preventing the driver from mistakenly stepping on the accelerator pedal of an automobile.
FIG. 5 is a left 45 degree view of the shelling of the anti-misstep safety device of the automobile accelerator pedal of the present invention.
FIG. 6 is a right 45 degree view of the shell of the anti-misstep safety device of the automobile accelerator pedal of the present invention.
FIG. 7 is an exploded front view of the anti-misstep safety device for an accelerator pedal of an automobile according to the present invention.
Fig. 8 is an exploded left 45 ° view of the anti-misstep safety device of an automobile accelerator pedal of the present invention.
FIG. 9 is an exploded rear right 45 view of the anti-misstep safety device for an accelerator pedal of an automobile of the present invention.
Fig. 10 is a schematic view of a vehicle stopping sight distance.
The pedal stress transmission device comprises a pedal stress transmission device 1, a rack guide rod 12, a first spring 13, a gear groove 14, a gear 2, a transmission device 21, a ratchet wheel rotating disc 22, a pawl 23, a pawl pressing sheet 24, a planetary gear 25, a planet carrier 26, a gear ring 27, a sun gear 3, a centrifugal locking device 31, a locking wheel 32, a gear pin groove 33, a pawl clamping groove 34, a locking device rotating disc 35, a centrifugal body pawl 36, a second spring 4, a locking electric sensing brake device 41, a metal ring 42, a metal pressing sheet 43, a pressing sheet pile 44, a lead 51, a front shaft 52 and a rear shaft.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
An anti-misstep safety device for an automobile accelerator pedal is shown in figures 1-9 and comprises a pedal stress conduction device 1, a transmission device 2, a centrifugal locking device 3, an electric sensing brake locking device 4, a front shaft 51 for transmitting torque between the pedal stress conduction device 1 and the transmission device 2, a rear shaft 52 for transmitting torque between the transmission device 2 and the centrifugal locking device 3;
the pedal stress conduction device 1 comprises a rack guide rod 11, a first spring 12 arranged at the upper end of the rack guide rod 11, a gear groove 13 arranged at the lower end of the rack guide rod 11, and a gear 14 with the same modulus and pressure angle as the gear groove 13, wherein the first spring 12 can enable the rack guide rod 11 to automatically bounce after being pressed down; the rack bar 11 can be perfectly meshed with the gear 14 through the gear groove 13, and the longitudinal force can be converted into the rotating torque by matching with the gear 14 and is output to the ratchet turntable 21 through the front shaft 51.
The transmission device 2 comprises a ratchet wheel rotating disc 21, a pawl 22 clamped with the ratchet wheel rotating disc 21, a pawl pressing sheet 23 for pressing the pawl 22 on the ratchet wheel rotating disc 21, a planetary gear 24, a planet carrier 25 for fixing the planetary gear 24, a gear ring 26 for providing a motion track for the planetary gear 24 and a sun gear 27, wherein the front shaft 51 penetrates through the gear 14 and the ratchet wheel rotating disc 21;
when the accelerator pedal is stepped on by a foot, the ratchet wheel rotary table 21 generates clockwise torque through the rack guide rod 11 and the gear 14, and the torque is transmitted to the planet carrier 25 by matching with the pawl 22; when the ratchet wheel rotating disc 21 rotates clockwise, the torque is transmitted to the planet carrier 25, the rotating torque is transmitted to the planet gear 24 through the planet carrier 25 and is transmitted to the sun gear 27 through the planet gear 24, and finally the sun gear 27 transmits the torque to the locking device rotating disc 34;
when the foot is lifted, the rack guide rod 11 is jacked up under the action of the spring 12, so that the device rotates anticlockwise, the ratchet wheel rotary table 21 rotates anticlockwise, the pawl 22 is jacked up, and the pawl 22 interrupts the transmission of torque;
the carrier 25 can revolve around the sun gear 27 and rotate around its own central axis without changing the relative position between the planetary gears 24;
the gear ring 26 is secured to the device housing during installation of the device by a gear pin slot 32.
The centrifugal locking device 3 comprises a locking wheel 31, gear pin grooves 32 uniformly arranged around the locking wheel 31, a pawl clamping groove 33 arranged on the inner side of the locking wheel 31, a locking device turntable 34 arranged in the center of the centrifugal locking device 3, centrifugal body pawls 35 uniformly arranged around the locking device turntable 34, and a second spring 36 arranged between the locking device turntable 34 and the centrifugal body pawls 35, wherein the second spring 36 provides a centripetal force for the centrifugal body pawls 35 when the locking device turntable 34 rotates; assisting in restoring the unlocked state after the device is locked; the rear shaft 52 penetrates through the sun gear 27 and the locking device turntable 34; the lockup clutch disk 34 is the torque input portion of the centrifugal clutch;
the locking wheel 31 is fixed on the device shell and is provided with a pawl clamping groove 33 for locking a pawl 35, the centrifugal body pawl 35 is used as a centrifugal body part of the centrifugal clutch, and the part can be clamped on the pawl clamping groove 33 when the rotating speed exceeds a specific rotating speed, so that the device is locked; the gear pin slot 32 is additionally provided with a gear pin in the installation process of the device, so that the locking wheel 31 is fixed on the shell of the device.
The locking electric sensing brake device 4 comprises a circular metal ring 41, metal pressing sheets 42 uniformly arranged around the metal ring 41, pressing sheet piles 43 for fixing the metal pressing sheets 42 and a lead 44, wherein one end of the lead 44 is connected with the pressing sheet piles 43, the other end of the lead 44 is connected with the locking wheel 31, and the pressing sheet piles 43, the metal pressing sheets 42, the metal ring 41, the rear shaft 52, the locking device turntable 34, the centrifugal body pawl 35, the second spring 36, the locking wheel 31 and other external circuits form a closed loop to enable the automobile brake device to generate braking force to stop.
Further, the module of the gear 14 is 2.5mm, the pressure angle is 20 degrees, the number of teeth is 10, the tooth width is 5mm, when the accelerator pedal is stepped on by a foot, the accelerator pedal presses the rack guide rod 11 down, the rack guide rod 11 moves down, the gear 14 converts the downward linear motion of the rack guide rod 11 into the rotary motion, and the speed conversion of the rack guide rod 11 and the gear 14 is as follows:
the pitch p is the modulus m and the circumferential rate pi is 2.5 pi mm;
from the above data, it can be seen that since the gear 14 and the rack bar 11 have the same modulus and pressure angle, and the number of teeth of the gear 14 is 10, the rack bar 11 moves downward by a distance of 2.5 π mm, the gear 14 rotates by 36 ° (0.2 π rad).
Since torque is transmitted coaxially between the gear 14 and the ratchet wheel 21, between the ratchet wheel 21 and the carrier 25, and between the sun gear 27 and the locker wheel 34, the angular velocity is not changed when these components are transmitted. It is thus obtained that the accelerator pedal is depressed by 1mm, and the centrifugal clutch obtains an angular velocity:
so when the accelerator pedal is depressed by 1mm, the centrifugal clutch rotates by an angle of 0.32 rad.
Further, the number of the gear pin grooves 32 is 2.
Further, the number of the centrifuge body pawls 35 is 3.
Further, the number of the metal flakes 42 is 3.
An operation method of a safety device for preventing an accelerator pedal of an automobile from being stepped on by mistake comprises the following steps:
(a) when the automobile accelerator pedal is stepped on, the rack guide rod 11 is pressed, and the rack guide rod 11 and the gear 14 change longitudinal force into rotating torque;
(b) the gear 14 is rotated clockwise by stepping on the accelerator pedal, the torque is transmitted to the ratchet wheel rotary table 21 through the central shaft 5, the torque is acted on the pawl 22 by the clockwise rotation of the ratchet wheel rotary table 21, and then the torque is transmitted to the planet carrier 25, the planet gear 24 is fixed on the planet carrier 25 and can rotate along with the planet carrier 25, and the planet gear 24 can only transmit the torque to the central sun gear 27 and realize the increase of the rotation angular velocity because the gear ring 26 is fixed;
(c) the sun gear 27 transmits the rotation torque to the locking device turntable 34 through the rotating shaft, the centrifugal body pawl 35 can be thrown out by clockwise rotation of the locking device turntable 34, and when the rotation angular speed exceeds a certain specific value, the centrifugal body pawl 35 can be clamped into the pawl clamping groove 33 to be locked;
(d) after the device is locked, the conducting wire 44, the pressing sheet pile 43, the metal pressing sheet 42, the metal ring 41, the central shaft 5, the locking device rotating disc 34, the second spring 36, the centrifugal body pawl 35, the locking wheel 31 and other external circuits form a closed loop, so that the automobile brake device generates braking force to stop.
The speed of the brake pedal is higher than that of the accelerator pedal when the driver emergently accelerates. The emergency brake is a sudden step, the emergency acceleration is more focused on a deep step, and the pedal stepping speeds of the emergency brake and the deep step are greatly different. Experiments show that the speed of stepping on the brake pedal during emergency braking is 1.09-1.56 m/s, and the speed of stepping on the accelerator pedal during emergency acceleration is 0.28-0.58 m/s, so that when the designed locking speed of the safety device for preventing mistaken stepping on the automobile accelerator pedal is set to be 0.80-0.87 m/s, the device can better distinguish the emergency acceleration from the mistaken stepping on the accelerator pedal. In the embodiment, the locking speed is set to be 0.84m/s, after the automobile is provided with the device, when the accelerator pedal is stepped down by a foot for 0.84m/s, the device can trigger locking, and a circuit of the locking electric sensing brake device 4 is switched on to generate braking force.
Speedometer with 1100 drivers stepping on accelerator pedal and brake pedal
In addition, the parking sight distance is a main factor influencing the occurrence of traffic accidents, a driver finds an emergency situation in the driving process of a driving vehicle, and the time required from the finding of the emergency situation to the moving of the right foot to the brake pedal is called as brake reaction time; the time from the start of the brake pedal depression to the occurrence of the maximum braking force, referred to as the brake application time; the time from the occurrence of the maximum braking force to the complete standstill of the vehicle is referred to as the duration of the braking. The distance that the vehicle travels during these three times is referred to as the vehicle braking unsafe period. Shortening the brake application time and duration involves design and manufacturing issues, and a key issue in actual driving operations is how to shorten and control the reaction time. When a person with less skilled driving skills drives a vehicle, the accelerator pedal is mistakenly used as the brake pedal due to high tension or other objective reasons, so that serious traffic accidents are caused, the locking function of the device can be triggered by the misoperation of the driver in an emergency situation, the brake system is linked to generate braking force, the vehicle is braked or the speed of the vehicle is reduced, the loss caused by the traffic accidents is reduced to the maximum extent, and the safety of the driver and passengers is guaranteed.
The parking visual range refers to a distance that a driver can safely park in front of an obstacle in as short a time as possible after finding the obstacle ahead while driving, and the required distance is called the parking visual range.
The parking apparent distance consists of three parts, namely the running distance L of the vehicle in the reaction time of the driver1Running distance S in the braking process time of the vehiclerSafety clearance L between vehicle and obstacle after complete stop0. As shown in fig. 10:
can be represented by the following formula:
S＝L1+Sr+L 0 ②
the running distance of the vehicle in the reaction time of the driver is shown as the formula III:
in the formula: l is1-the distance (m) travelled by the vehicle within the reaction time of the driver;
v-speed (km/h);
t-reaction time(s).
The braking process of the vehicle is approximate to a uniform deceleration process, the acceleration of the process is not changed, and the running distance of the vehicle in the braking process is obtained according to the rule of uniform speed change linear motion as shown in the formula (IV):
in the formula: sr-braking distance (m)
V-initial velocity (m/s)
g-acceleration of gravity (m)2)
i-road longitudinal slope (ascending slope is "+", descending slope is "-")
When the longitudinal road surface has no slope, i.e. the value is 0, the above formula can be sorted by the formula of (c):
therefore, when the motor vehicle runs, a driver finds that an obstacle exists in front of the motor vehicle, the motor vehicle starts to brake, and the required braking and stopping sight distance is expressed by the following equation (sixthly):
from the formula, the influence of the operation of mistakenly stepping on the accelerator pedal by the driver on the parking sight distance is very large, the driving speed V and the parking sight distance S of the vehicle are in a quadratic function relationship, the misoperation causes the increase of the speed V, the parking sight distance S is further greatly increased, and finally serious traffic accidents are caused. The device locks the accelerator pedal when the accelerator pedal is mistakenly stepped to prevent the speed of the vehicle from increasing and is linked with the braking system to enable the vehicle to generate braking force to brake the vehicle or reduce the speed of the vehicle.
The device is a driving safety accelerator pedal mis-stepping prevention device, the whole device adopts a mechanical design structure, and compared with the existing mis-stepping prevention device, such as a vehicle electronic sensor system, an electromagnetic sensor system and the like, the device has the characteristics of simple structure, low manufacturing cost, convenient taking and placing, safety, effectiveness and the like. Because this mechanical device convenient to use, mechanical reliability is high, installs additional and reforms transform the construction in the vehicle, and feasibility and adaptability are very outstanding.
From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by hardware, firmware, or a combination thereof; in short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A safety device for preventing an accelerator pedal of an automobile from being stepped on by mistake is characterized by comprising a pedal stress conduction device (1), a transmission device (2), a centrifugal locking device (3), a locking electric sensing brake device (4), a front shaft (51) for transmitting torque between the pedal stress conduction device (1) and the transmission device (2), and a rear shaft (52) for transmitting torque between the transmission device (2) and the centrifugal locking device (3);
the pedal stress conduction device (1) comprises a rack guide rod (11), a first spring (12) arranged at the upper end of the rack guide rod (11), a gear groove (13) arranged at the lower end of the rack guide rod (11), and a gear (14) with the same modulus and pressure angle with the gear groove (13);
the transmission device (2) comprises a ratchet wheel rotating disc (21), a pawl (22) clamped with the ratchet wheel rotating disc (21), a pawl pressing sheet (23) for pressing the pawl (22) on the ratchet wheel rotating disc (21), a planetary gear (24), a planet carrier (25) for fixing the planetary gear (24), a gear ring (26) for providing a motion track for the planetary gear (24) and a sun gear (27), wherein the front shaft (51) penetrates through the gear (14) and the ratchet wheel rotating disc (21);
the centrifugal locking device (3) comprises a locking wheel (31), gear pin grooves (32) uniformly formed around the locking wheel (31), a pawl clamping groove (33) formed in the inner side of the locking wheel (31), a locking device rotary table (34) arranged in the center of the centrifugal locking device (3), centrifugal body pawls (35) uniformly formed around the locking device rotary table (34), and a second spring (36) arranged between the locking device rotary table (34) and the centrifugal body pawls (35), wherein the rear shaft (52) penetrates through the sun wheel (27) and the locking device rotary table (34);
the locking electric sensing brake device (4) comprises a metal ring (41) which is wound into a circle, metal pressing sheets (42) which are uniformly arranged around the metal ring (41), pressing sheet piles (43) for fixing the metal pressing sheets (42), and a lead (44), wherein the lead (44) can form a closed loop with the pressing sheet piles (43), the metal pressing sheets (42), the metal ring (41), a metal rotating shaft, a locking device turntable (34), a centrifugal body pawl (35), a second spring (36), a locking wheel (31) and other external circuits to enable the automobile brake device to generate brake force to stop.
2. The accelerator pedal mis-stepping prevention safety device of an automobile according to claim 1, wherein the gear (14) has a module of 2.5mm, a pressure angle of 20 degrees, 10 teeth and a tooth width of 5 mm.
3. The accelerator pedal mis-stepping prevention safety device of an automobile as claimed in claim 1, wherein the number of the gear pin grooves (32) is 2.
4. The accelerator pedal mis-stepping prevention safety device of an automobile as claimed in claim 1, wherein the number of the centrifugal body pawls (35) is 3.
5. The accelerator pedal mis-stepping prevention safety device of an automobile as claimed in claim 1, wherein the number of the metal pressing pieces (42) is 3.
6. The method for operating the anti-misstep safety device of the accelerator pedal of the automobile according to any one of claims 1 to 5, characterized by comprising the following steps:
(a) when an automobile accelerator pedal is stepped on, a rack guide rod (11) is pressed, and the rack guide rod (11) and a gear (14) change longitudinal force into rotating torque;
(b) the accelerator pedal is stepped down to enable the gear (14) to rotate clockwise, the torque is transmitted to the ratchet wheel rotating disc (21) through the central shaft (5), the torque is applied to the pawl (22) due to the clockwise rotation of the ratchet wheel rotating disc (21), the torque is further transmitted to the planet carrier (25), the planetary gear (24) is fixed on the planet carrier (25) and can rotate along with the planet carrier (25), and the gear ring (26) is fixed, so that the planetary gear (24) can only transmit the torque to the central sun gear (27) and increase the rotation angular speed;
(c) the sun gear (27) transmits the rotation torque to the locking device turntable (34) through the rotating shaft, the centrifugal body pawl (35) can be thrown out by clockwise rotation of the locking device turntable (34), and when the rotation angular velocity exceeds a certain specific value, the centrifugal body pawl (35) can be clamped into the pawl clamping groove (33) to be locked;
(d) after the device is locked, a conducting wire (44), a pressing sheet pile (43), a metal pressing sheet (42), a metal ring (41), a central shaft (5), a locking device turntable (34), a second spring (36), a centrifugal body pawl (35), a locking wheel (31) and other external circuits form a closed loop, so that the automobile brake device generates braking force to stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346183.5A CN110001397B (en) | 2019-04-26 | 2019-04-26 | Anti-misstep safety device for automobile accelerator pedal and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346183.5A CN110001397B (en) | 2019-04-26 | 2019-04-26 | Anti-misstep safety device for automobile accelerator pedal and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110001397A CN110001397A (en) | 2019-07-12 |
| CN110001397B true CN110001397B (en) | 2022-02-01 |
Family
ID=67174575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910346183.5A Active CN110001397B (en) | 2019-04-26 | 2019-04-26 | Anti-misstep safety device for automobile accelerator pedal and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110001397B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546888A (en) * | 2020-06-01 | 2020-08-18 | 卢志强 | Automobile accelerator pedal with locking mechanism |
| CN111806227A (en) * | 2020-08-02 | 2020-10-23 | 卢志强 | Improved automobile pedal device |
| CN114954383A (en) * | 2021-02-25 | 2022-08-30 | 博泰车联网科技(上海)股份有限公司 | Control method and system for preventing accelerator from being stepped on by mistake |
| CN114019970B (en) * | 2021-11-03 | 2025-02-18 | 南京天创电子技术有限公司 | An overspeed locking mechanism and a track inspection robot |
| CN114404157A (en) * | 2022-01-18 | 2022-04-29 | 泰安科大洛赛尔传感技术有限公司 | A kind of swing movement wheelchair and operation method |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1096469A (en) * | 1964-02-25 | 1967-12-29 | Werner Reimers | Control mechanism for engine combined with infinitely variable gear |
| JPH06278583A (en) * | 1993-03-30 | 1994-10-04 | Nissan Shatai Co Ltd | Parking brake device |
| DE69408945D1 (en) * | 1993-12-09 | 1998-04-16 | Nissan Motor | Accelerator pedal arrangement |
| EP1310412A1 (en) * | 2001-11-09 | 2003-05-14 | Kia Motors Corporation | Braking device for vehicles |
| WO2004082977A1 (en) * | 2003-03-15 | 2004-09-30 | Daimlerchrysler Ag | Method for operating a hill-holder device in a motor vehicle |
| CN100999185A (en) * | 2007-01-10 | 2007-07-18 | 毛嘉 | Control device for proventing motor vehicle throttle disorder |
| CN101341054A (en) * | 2006-03-24 | 2009-01-07 | 爱信艾达株式会社 | Parking control system for vehicle |
| CN102343816A (en) * | 2010-08-05 | 2012-02-08 | 王士笑 | Accelerator mistakenly-stepping risk-avoiding control device for automobile |
| CN103129537A (en) * | 2013-02-22 | 2013-06-05 | 管兆康 | Automatic brake apparatus for mistaken stepping on accelerators |
| CN103527674A (en) * | 2012-07-03 | 2014-01-22 | 洪涛 | Spatial conjunction type centrifugal clutch capable of being operated rapidly, double-clutch automatic gearbox provided with spatial conjunction type centrifugal clutches, and control method |
| KR101511151B1 (en) * | 2014-02-19 | 2015-04-15 | 배현규 | Apparatus for preventing sudden unintended acceleration on vehicle |
| CN104972906A (en) * | 2015-07-13 | 2015-10-14 | 天津科技大学 | Device for preventing accelerator from being stepped by mistake |
| CN204956115U (en) * | 2015-08-31 | 2016-01-13 | 常州市白宇汽车零部件有限公司 | Connect firm motor vehicle throttle and brake safe combination control device |
| US9239095B1 (en) * | 2014-01-13 | 2016-01-19 | Alfonso Soto Escobosa | Servo-automated transmission |
| CN105584364A (en) * | 2016-02-23 | 2016-05-18 | 湖南农业大学 | Mechanical centrifugal vehicle accelerator misapplication prevention safety assistance device |
| WO2017027820A1 (en) * | 2015-08-12 | 2017-02-16 | Lytx, Inc. | Vehicle to vehicle and vehicle to infrastructure response monitoring |
| CN106585375A (en) * | 2017-02-08 | 2017-04-26 | 河南科技学院 | Automobile throttle wrong treading mechanical locking apparatus with speed threshold |
| CN107499124A (en) * | 2017-09-27 | 2017-12-22 | 华东交通大学 | A kind of automobile accelerator stepping misoperation preventing device |
| CN107539125A (en) * | 2017-09-25 | 2018-01-05 | 厦门理工学院 | A kind of emergency self-locking device of mis-accelerator pressing |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898812A (en) * | 1974-06-17 | 1975-08-12 | Eaton Corp | Hydrostatic transmission control system |
| JPS5465931A (en) * | 1977-11-04 | 1979-05-28 | Yamaha Motor Co Ltd | Apparatus for peleasing parking brake |
| JP4887509B2 (en) * | 2005-08-11 | 2012-02-29 | アイ・アール・ケア株式会社 | Automobile driving assistance device |
| KR100768644B1 (en) * | 2006-12-15 | 2007-10-18 | 김덕영 | Automatic brake device of walking aid |
| US20090025506A1 (en) * | 2007-07-27 | 2009-01-29 | Boris Karpachev | Vehicle Pedal Controls proof against Misapplication of Accelerator |
| US8100218B2 (en) * | 2009-10-19 | 2012-01-24 | Cnh America Llc | Electronic throttle on control handle |
| CN203567559U (en) * | 2010-12-20 | 2014-04-30 | 松山辉男 | Pedal guide system device |
| CN104002675A (en) * | 2013-02-25 | 2014-08-27 | 王光强 | Automotive accelerator device for preventing pedal misapplication |
| US9132811B2 (en) * | 2013-03-11 | 2015-09-15 | Toyota Motor Engineering & Manufacturing North America, Inc. | Parking pawl engagement control with feedback |
| US9278698B2 (en) * | 2014-04-23 | 2016-03-08 | Honda Motor Co., Ltd. | Methods and apparatus for limiting engine speed |
| CN205239164U (en) * | 2015-12-11 | 2016-05-18 | 徐州工程学院 | Arresting gear is stepped on suddenly to accelerator of automobile footboard |
| CN207923489U (en) * | 2018-03-27 | 2018-09-28 | 河南警察学院 | A kind of traffic accident vehicle paint identification extraction element |
-
2019
- 2019-04-26 CN CN201910346183.5A patent/CN110001397B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1096469A (en) * | 1964-02-25 | 1967-12-29 | Werner Reimers | Control mechanism for engine combined with infinitely variable gear |
| JPH06278583A (en) * | 1993-03-30 | 1994-10-04 | Nissan Shatai Co Ltd | Parking brake device |
| DE69408945D1 (en) * | 1993-12-09 | 1998-04-16 | Nissan Motor | Accelerator pedal arrangement |
| EP1310412A1 (en) * | 2001-11-09 | 2003-05-14 | Kia Motors Corporation | Braking device for vehicles |
| WO2004082977A1 (en) * | 2003-03-15 | 2004-09-30 | Daimlerchrysler Ag | Method for operating a hill-holder device in a motor vehicle |
| CN101341054A (en) * | 2006-03-24 | 2009-01-07 | 爱信艾达株式会社 | Parking control system for vehicle |
| CN100999185A (en) * | 2007-01-10 | 2007-07-18 | 毛嘉 | Control device for proventing motor vehicle throttle disorder |
| CN102343816A (en) * | 2010-08-05 | 2012-02-08 | 王士笑 | Accelerator mistakenly-stepping risk-avoiding control device for automobile |
| CN103527674A (en) * | 2012-07-03 | 2014-01-22 | 洪涛 | Spatial conjunction type centrifugal clutch capable of being operated rapidly, double-clutch automatic gearbox provided with spatial conjunction type centrifugal clutches, and control method |
| CN103129537A (en) * | 2013-02-22 | 2013-06-05 | 管兆康 | Automatic brake apparatus for mistaken stepping on accelerators |
| US9239095B1 (en) * | 2014-01-13 | 2016-01-19 | Alfonso Soto Escobosa | Servo-automated transmission |
| KR101511151B1 (en) * | 2014-02-19 | 2015-04-15 | 배현규 | Apparatus for preventing sudden unintended acceleration on vehicle |
| CN104972906A (en) * | 2015-07-13 | 2015-10-14 | 天津科技大学 | Device for preventing accelerator from being stepped by mistake |
| WO2017027820A1 (en) * | 2015-08-12 | 2017-02-16 | Lytx, Inc. | Vehicle to vehicle and vehicle to infrastructure response monitoring |
| CN204956115U (en) * | 2015-08-31 | 2016-01-13 | 常州市白宇汽车零部件有限公司 | Connect firm motor vehicle throttle and brake safe combination control device |
| CN105584364A (en) * | 2016-02-23 | 2016-05-18 | 湖南农业大学 | Mechanical centrifugal vehicle accelerator misapplication prevention safety assistance device |
| CN106585375A (en) * | 2017-02-08 | 2017-04-26 | 河南科技学院 | Automobile throttle wrong treading mechanical locking apparatus with speed threshold |
| CN107539125A (en) * | 2017-09-25 | 2018-01-05 | 厦门理工学院 | A kind of emergency self-locking device of mis-accelerator pressing |
| CN107499124A (en) * | 2017-09-27 | 2017-12-22 | 华东交通大学 | A kind of automobile accelerator stepping misoperation preventing device |
Non-Patent Citations (2)
| Title |
|---|
| 中国汽车工程学术研究综述 2017;《中国公路学报》编辑部;《中国公路学报》;20170615(第06期);第5~201页 * |
| 具有速度阈值的汽车油门误踩机械锁止装置设计;郭昊等;《河南科技学院学报(自然科学版)》;20170228(第01期);第68~73页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110001397A (en) | 2019-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110001397B (en) | Anti-misstep safety device for automobile accelerator pedal and operation method thereof | |
| CN102897058B (en) | Slope-parking starting anti-sliding control method for pure electric motor coach | |
| CN102133864B (en) | Accelerated pedal with self-locking and driven resetting functions | |
| CN204488512U (en) | The fender guard that a kind of gas is stepped on by mistake | |
| CN105584364B (en) | A kind of mechanical centrifugal formula vehicle accelerator anti-false step safety aid | |
| CN201566493U (en) | A device for preventing accidental depressing of accelerator pedal during emergency braking of automobile | |
| CN104908639A (en) | Brake strength analysis and early warning system based on pedal plate position | |
| CN203126834U (en) | Parking braking prompting device | |
| CN105083007A (en) | Intelligent safe accelerator device and control method | |
| CN101695905A (en) | Device for preventing treading accelerator pedal by mistake at moment of automobile emergency braking | |
| CN202847671U (en) | Automobile brake control system | |
| CN105416270A (en) | Handbrake system with safety instruction function | |
| CN107458531A (en) | A kind of shared motor bicycle of variable output power | |
| CN105383460A (en) | Multifunctional automatic handbrake system | |
| CN202413426U (en) | Emergency device for mistaken stepping of accelerator | |
| CN107226074B (en) | An automatic braking device and method after emergency braking but accidentally stepping on the accelerator | |
| CN106864455A (en) | Novel automobile intelligent safety system | |
| CN204184338U (en) | The safe backing system of a kind of automatic catch automobile | |
| CN203697967U (en) | Brake safety device | |
| CN110154883B (en) | Friction type automobile driving anti-interference device | |
| TW201350372A (en) | Intelligent braking and accelerator-controlling device | |
| WO2022028355A1 (en) | Device and method for preventing mistakenly stepping on accelerator by converting refueling into braking | |
| CN104742739B (en) | Motor vehicle reinforces controller and brake linkage | |
| CN202669624U (en) | Safe driving reminder for automobiles | |
| CN113442723B (en) | Control method and device for preventing mistaken stepping on accelerator of vehicle and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |