CN112896116B - Electromagnetic regulation type intelligent pedal mechanism for braking feeling of electric automobile - Google Patents
Electromagnetic regulation type intelligent pedal mechanism for braking feeling of electric automobile Download PDFInfo
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- CN112896116B CN112896116B CN202110294547.7A CN202110294547A CN112896116B CN 112896116 B CN112896116 B CN 112896116B CN 202110294547 A CN202110294547 A CN 202110294547A CN 112896116 B CN112896116 B CN 112896116B
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- brake pedal
- simulator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention particularly relates to an electromagnetic regulation type intelligent pedal mechanism for the brake feeling of an electric automobile, which comprises a brake pedal and a brake feeling simulator, wherein the brake pedal is connected with a brake pedal; the brake feeling simulator comprises a brake push rod, a piston and a simulator shell, wherein a piston cavity matched with the piston is formed in the simulator shell, two ends of the brake push rod are fixedly connected with the piston and a brake pedal respectively, an elastic piece is arranged between the bottom end of the piston and the piston cavity, an electromagnetic coil is fixedly arranged in the simulator shell and positioned on the periphery of the piston, and the piston is made of a magnetic conductive material; the brake pedal is provided with an induction sensor and a limiting block, a pedal displacement sensor is arranged between the brake push rod and the brake feeling simulator, the simulator shell is provided with an emergency switch, and when the brake pedal steps down to the bottom, the limiting block triggers the emergency switch; the pedal mechanism further comprises a height adjusting device for adjusting the height of the brake pedal, an angle adjusting device for adjusting the angle of the brake pedal and a horizontal adjusting device for adjusting the front and rear positions of the brake pedal.
Description
Technical Field
The invention belongs to the technical field of vehicle braking, and particularly relates to an electromagnetic adjusting type intelligent pedal mechanism for braking feeling of an electric vehicle.
Background
Electric vehicles are one of the important approaches to solving the current energy and environmental problems. For the braking process of a traditional vehicle, the kinetic energy of the vehicle is converted into the heat energy of a friction pair of a brake; for the electric automobile, the energy of the traditional automobile in the braking and sliding processes can be collected through the power generation function of the motor, so that the fuel economy is improved, and the service life of the brake friction plate can be prolonged. Therefore, the regenerative braking control can recover the energy in the braking process of the automobile, so that the endurance mileage of the electric automobile is effectively prolonged.
The traditional brake system has the defects of complex pipeline arrangement, dependence on a vacuum power assisting device, slow brake response speed, incapability of actively adjusting brake torque, difficulty in integrated control with other systems and the like, and is not suitable for the development requirement of integrated control of the chassis of the automobile, particularly the electric automobile.
The electronic control brake system which appears later realizes the decoupling of a brake pedal mechanism and a brake actuating mechanism, mainly comprises an electronic hydraulic brake system (EHB) and an electronic mechanical brake system (EMB), cancels the direct connection between the brake pedal mechanism and the brake actuating mechanism, takes an electric wire as an information transmission medium, and an electronic control unit identifies the brake intention according to the related sensor signal to control the brake actuating mechanism to act so as to realize the control of the brake force of each wheel.
However, the brake pedal mechanism and the brake actuating mechanism are decoupled, so that the brake pedal of the electronic control brake system does not depend on the traditional vacuum booster, the brake pedal mechanism and the brake feeling of a driver are greatly changed, and a brand new design needs to be carried out on the automobile brake pedal mechanism. At present, the existing inquired relevant information of the brake pedal mechanism of the automobile brake system does not basically depart from the traditional internal combustion engine automobile brake pedal mechanism form, and the problems of non-adjustable pedal position or complex structure and the like exist. So far, the intelligent brake pedal mechanism of the electric automobile, which has the functions of pre-identifying the brake intention and emergency braking, and integrating the functions of regulating the brake feeling and regulating the pedal position, is rarely mentioned, and is separated from the traditional internal combustion engine automobile brake pedal mechanism.
Disclosure of Invention
In order to solve the problem that the brake pedal mechanism of the electric automobile brake system in the prior art is not separated from the traditional internal combustion engine automobile brake pedal mechanism, the invention provides an electromagnetic regulation type intelligent brake pedal mechanism for the electric automobile.
In order to solve the technical problem, the invention adopts the following technical scheme that the electromagnetic adjustment type intelligent pedal mechanism for the braking feeling of the electric automobile comprises a braking pedal, a braking feeling simulator, a height adjusting device, an angle adjusting device and a horizontal adjusting device which are sequentially arranged;
the brake feeling simulator comprises a brake push rod, a piston and a simulator shell, wherein a piston cavity is formed in the simulator shell, the piston is arranged in the piston cavity, two ends of the brake push rod are fixedly connected with the piston and a brake pedal respectively, an elastic piece is arranged between the bottom end of the piston and the piston cavity, an electromagnetic coil is fixedly arranged in the simulator shell, the electromagnetic coil is positioned on the periphery of the piston, the piston is made of a magnetic conductive material, or the piston is internally provided with a magnetic conductive material;
the brake pedal is provided with an induction sensor and a limiting block, a pedal displacement sensor is arranged between the brake push rod and the brake feeling simulator, the simulator shell is provided with an emergency switch, and when the brake pedal is close to the brake feeling simulator downwards and is stepped to the bottom, the limiting block is in contact with the emergency switch to trigger the emergency switch;
the height adjusting device is used for adjusting the height of the brake pedal, the angle adjusting device is used for adjusting the angle of the brake pedal, and the horizontal adjusting device is used for adjusting the front position and the rear position of the brake pedal.
Preferably, the brake feel simulator further comprises a buffer gasket fixedly arranged in the piston cavity, the buffer gasket is positioned between the top end of the piston and the piston cavity, and the buffer gasket is positioned on the periphery of the brake push rod; the simulator is characterized in that a buffer cushion block is arranged on the simulator shell, and the emergency switch is located in the buffer cushion block. The arrangement of the cushion pad block and the cushion washer effectively protects the pedal mechanism, and a good noise reduction effect is achieved.
Preferably, the magnetic conductive material is iron. Low cost and good magnetic conduction effect.
Preferably, the elastic member is a spring. Simple and reliable structure and low cost.
Preferably, the number of the induction sensors and the emergency switches is two, the two induction sensors are distributed up and down, and the two emergency switches are also distributed up and down. The two induction sensors and the two emergency switches are arranged and are all used for improving the fault-tolerant capability of the pedal mechanism, if one of the induction sensors and the two emergency switches breaks down, the other induction sensor and the other emergency switch can still keep normal work, and meanwhile the reaction precision and the sensitivity of the pedal mechanism are improved.
Preferably, the induction sensor is an infrared induction sensor or an ultrasonic sensor; the pedal displacement sensor is a linear displacement sensor. When the automobile brakes, when a driver moves the right foot above the brake pedal, the induction sensor can sense the brake intention of the driver in advance before the driver performs actual braking, and reserve time is provided for starting work, brake force distribution and the like of an automobile brake system, so that the brake response time is shortened, and the automobile brake performance is improved; the pedal displacement sensor accurately identifies the actual braking intention of the driver; in addition, the brake system control unit of the automobile can judge the emergency degree and different emergency degrees of the current braking in advance by calculating the time difference between the signals generated by the induction sensor and the signals generated by the pedal displacement sensor, and the brake actuating mechanism of the automobile adopts different control strategies; the inductive sensor and the pedal displacement sensor have high sensing precision, low cost and convenient installation and monitoring.
Further, horizontal adjusting device includes base, first slider and first motor, be provided with first lead screw and guide bar on the base, the guide bar is located the both sides of first lead screw, first slider slip cap is established on the guide bar, first slider and first lead screw threaded connection, the output and the first lead screw transmission of first motor are connected, angle adjusting device sets up on first slider. The horizontal adjusting device has the advantages of simple and reliable structure, ingenious design, convenience in installation and operation and lower cost.
Furthermore, two ends of the first screw rod are fixedly provided with stop blocks, and the stop blocks are used for limiting the front-back sliding stroke of the first sliding block. Namely, the front and rear position range of the brake pedal is adjusted, and the safety of the pedal mechanism is improved.
Furthermore, the angle adjusting device comprises a first supporting plate, a second sliding block, a first supporting rod, an adjusting nut, a second screw rod, a second motor and a second supporting rod, the second supporting plate is fixedly arranged on the first sliding block, the first supporting plate and the second supporting plate are rotatably connected, an included angle is formed between the first supporting plate and the second supporting plate, and the height adjusting device is arranged on the first supporting plate; the improved motor support is characterized in that a slide is arranged on the first support plate, the second slider slides up and down along the slide, two ends of the first support rod are fixedly connected with the second slider and the adjusting nut respectively, the adjusting nut is in threaded connection with the second lead screw, the output end of the second motor is in transmission connection with the second lead screw, the second support rod is in rotation connection with the second support plate, and the second motor is fixedly arranged on the second support rod. The second motor drives the adjusting nut to linearly move through driving the second screw rod to rotate, meanwhile, the second supporting rod rotates, the adjusting nut drives the second sliding block to slide along the slide way, and the first supporting plate rotates to change the included angle between the first supporting plate and the second supporting plate, so that the purpose of adjusting the angle of the brake pedal is achieved, the angle adjusting device is simple and reliable in structure, ingenious in design, convenient to install and operate and low in cost.
Further, height adjusting device includes height adjusting shell, third lead screw, third motor and third slider, height adjusting shell and third motor all fix and set up on first backup pad, the output and the third lead screw transmission of third motor are connected, third slider and third lead screw threaded connection, the third slider slides and sets up in height adjusting shell, simulator casing and third slider fixed connection. The height adjusting device has the advantages of simple and reliable structure, ingenious design, convenience in installation and operation and lower cost.
Has the advantages that: the invention relates to an electromagnetic regulation type intelligent pedal mechanism for braking feeling of an electric automobile,
(1) the electromagnetic adjustment type intelligent pedal mechanism for the braking feeling of the electric automobile is suitable for a braking system of the electric automobile, does not need a vacuum booster device, meets the regenerative braking requirement of a motor, and has the advantages of simple structure, convenience in arrangement, easiness in implementation and the like;
(2) according to the electromagnetic adjustment type intelligent pedal mechanism for the braking feeling of the electric automobile, the braking feeling is simulated by combining the elastic force of the spring and the suction force of the electromagnetic coil, and the braking feeling can be set by a driver according to the preference and the requirement, so that the practicability, the application range, the braking comfort and the safety performance of the product are improved;
(3) according to the electromagnetic regulation type intelligent pedal mechanism for the braking feeling of the electric automobile, the position of the brake pedal comprises the height position, the horizontal position and the angle position, and can be automatically set by a driver according to the preference and the requirement of the driver, so that the practicability, the application range, the braking comfort and the safety performance of the product are improved;
(4) according to the electromagnetic adjustment type intelligent pedal mechanism for the braking feeling of the electric automobile, the two induction sensors are arranged on the brake pedal, so that the braking intention of a driver can be sensed in advance, and reserved time is provided for braking torque implementation, braking force distribution and the like, so that the braking response time is shortened, and the comprehensive braking performance of the automobile is improved;
(5) the electromagnetic adjustment type intelligent pedal mechanism for the braking feeling of the electric automobile is provided with two emergency switches, and if a pedal displacement sensor fails, a driver can step the brake pedal to the bottom, a standby emergency braking function is started, and the safety performance of the automobile braking is improved;
(6) according to the electromagnetic regulation type intelligent pedal mechanism for the braking feeling of the electric automobile, disclosed by the invention, when the electric automobile is braked emergently, the electromagnetic coil is electrified with the maximum current so as to provide the maximum auxiliary power, so that the response time of an emergency brake pedal can be reduced, and the braking safety performance of the automobile is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic side view of an electromagnetic braking feel adjustment type intelligent pedal mechanism for an electric vehicle according to the present invention;
FIG. 2 is a schematic cross-sectional view of a brake feel simulator of the electromagnetic adjustable intelligent pedal mechanism for brake feel of an electric vehicle according to the present invention;
FIG. 3 is a schematic cross-sectional view of the height adjustment device of the electromagnetic regulation type intelligent pedal mechanism for braking feeling of the electric automobile according to the invention;
FIG. 4 is a schematic top view of a leveling device of an electromagnetic brake feel adjustment type intelligent pedal mechanism for an electric vehicle according to the present invention;
in the figure: 1. brake pedal, 2, brake feeling simulator, 21, brake push rod, 22, piston, 23, simulator casing, 24, piston cavity, 25, spring, 26, electromagnetic coil, 27, cushion washer, 3, height adjusting device, 31, height adjusting casing, 32, third lead screw, 33, third motor, 34, third slider, 4, angle adjusting device, 41, first supporting plate, 42, second supporting plate, 43, slideway, 44, first supporting rod, 45, adjusting nut, 46, second lead screw, 47, second motor, 48, second supporting rod, 5, horizontal adjusting device, 51, base, 52, first slider, 53, first motor, 54, first lead screw, 55, guide rod, 56, stopper, 6, inductive sensor, 7, stopper, 8, pedal displacement sensor, 9, cushion pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 4, an electromagnetic adjustment type intelligent brake pedal mechanism for an electric vehicle for brake feeling comprises a brake pedal 1, a brake feeling simulator 2, a height adjusting device 3, an angle adjusting device 4 and a horizontal adjusting device 5 which are sequentially arranged; as shown in fig. 2, the brake feeling simulator 2 includes a brake push rod 21, a piston 22, a simulator housing 23 and a cushion washer 27, wherein a piston cavity 24 is formed in the simulator housing 23, the piston 22 is disposed in the piston cavity 24, two ends of the brake push rod 21 are respectively fixedly connected to the piston 22 and the brake pedal 1, the cushion washer 27 is fixedly disposed in the piston cavity 24, the cushion washer 27 is located between a top end of the piston 22 and the piston cavity 24, the cushion washer 27 is located on an outer periphery of the brake push rod 21, an elastic member is disposed between a bottom end of the piston 22 and the piston cavity 24, the elastic member in this embodiment is a spring 25, an electromagnetic coil 26 is fixedly disposed in the simulator housing 23, the electromagnetic coil 26 is located on an outer periphery of the piston 22, the piston 22 is made of a magnetic conductive material, or a magnetic conductive material is disposed in the piston 22, the magnetic conductive material of the embodiment adopts iron;
as shown in fig. 1, an induction sensor 6 and a limit block 7 are arranged on a brake pedal 1, the induction sensor 6 of the embodiment adopts an infrared induction sensor or an ultrasonic sensor, a pedal displacement sensor 8 is arranged between a brake push rod 21 and a brake feeling simulator 2, and the pedal displacement sensor 8 of the embodiment adopts a linear displacement sensor; the simulator shell 23 is provided with a buffer cushion block 9, an emergency switch is arranged in the buffer cushion block 9, when the brake pedal 1 is close to the brake feeling simulator 2 downwards and steps to the bottom, the limiting block 7 is in contact with the emergency switch to trigger the emergency switch, a brake system control unit (the existing automobile brake system control unit) of the automobile starts an emergency brake function (the existing automobile emergency brake function) of the automobile according to an emergency switch closing signal, and at the moment, the brake system control unit of the automobile does not acquire signals of the induction sensor 6 and the pedal displacement sensor 8 any more and sends a maximum brake torque demand signal to the brake actuating mechanism to implement automobile braking; in order to improve the fault-tolerant capability of the pedal mechanism, in this embodiment, the number of the induction sensors 6 and the number of the emergency switches are two, the two induction sensors 6 are distributed up and down, and the two emergency switches are also distributed up and down;
as shown in fig. 1 and 4, the horizontal adjusting device 5 is used for adjusting the front and back position of the brake pedal 1, specifically, in this embodiment, the horizontal adjusting device 5 includes a base 51, a first slider 52 and a first motor 53, a first lead screw 54 and a guide rod 55 are disposed on the base 51, the guide rod 55 is located at two sides of the first lead screw 54, the first slider 52 is slidably sleeved on the guide rod 55, the first slider 52 is in threaded connection with the first lead screw 54, stoppers 56 are fixedly disposed at two ends of the first lead screw 54, the stoppers 56 are used for limiting the front and back sliding stroke of the first slider 52, the output end of the first motor 53 is in transmission connection with the first lead screw 54, and the angle adjusting device 4 is disposed on the first slider 52;
as shown in fig. 1, the angle adjusting device 4 is used for adjusting the angle of the brake pedal 1, specifically, in the present embodiment, the angle adjusting device 4 includes a first support plate 41, a second support plate 42, a second slider, a first support rod 44, an adjusting nut 45, a second lead screw 46, a second motor 47 and a second support rod 48, the second support plate 42 is fixedly disposed on the first slider 52, the first support plate 41 and the second support plate 42 are rotatably connected, an included angle is formed between the first support plate 41 and the second support plate 42, and the height adjusting device 3 is disposed on the first support plate 41; the first support plate 41 is provided with a slide way 43, the second slide block slides up and down along the slide way 43, two ends of the first support rod 44 are respectively fixedly connected with the second slide block and an adjusting nut 45, the adjusting nut 45 is in threaded connection with a second screw rod 46, the output end of the second motor 47 is in transmission connection with the second screw rod 46, the second support rod 48 is in rotary connection with the second support plate 42, and the second motor 47 is fixedly arranged on the second support rod 48;
as shown in fig. 1 and 3, the height adjusting device 3 is used for adjusting the height of the brake pedal 1, specifically, in the present embodiment, the height adjusting device 3 includes a height adjusting housing 31, a third lead screw 32, a third motor 33 and a third slider 34, the height adjusting housing 31 and the third motor 33 are both fixedly disposed on the first supporting plate 41, an output end of the third motor 33 is in transmission connection with the third lead screw 32, the third slider 34 is in threaded connection with the third lead screw 32, the third slider 34 is slidably disposed in the height adjusting housing 31, and the simulator housing 23 is fixedly connected with the third slider 34.
An existing electric automobile adopts an electric control brake system (EHB or EMB), an independent friction brake actuating mechanism is arranged at each wheel brake disc, the friction brake actuating mechanisms are not interfered with each other, and the friction brake actuating mechanisms and the pedal mechanisms are decoupled. The brake system control unit of the automobile recognizes the brake intention of a driver by acquiring signals of the induction sensor 6 and the pedal displacement sensor 8, and then realizes the accurate control of the existing motor regenerative braking and the friction braking of each wheel.
The working principle is as follows:
firstly, when the automobile is not braked, the spring 25 has a certain precompression force, and the piston 22 is tightly pressed on the buffer gasket 27 under the action of the force of the spring 25; secondly, when the automobile brakes, when a driver moves the right foot to the position above the brake pedal 1, the induction sensor 6 can sense the braking intention of the driver in advance before the driver performs actual braking, and reserve time is provided for starting work, braking force distribution and the like of an automobile braking system, so that the braking response time is shortened, and the automobile braking performance is improved; the pedal displacement sensor 8 accurately identifies the actual braking intention of the driver; in addition, the brake system control unit of the automobile judges the emergency degree of the current brake in advance and different emergency degrees by calculating the time difference between the signals generated by the induction sensor 6 and the signals generated by the pedal displacement sensor 8, and the brake actuating mechanism of the automobile adopts different control strategies;
when the brake is a conventional brake, a driver steps on the brake pedal 1, the brake pedal 1 drives the brake push rod 21 and the piston 22 to overcome the force of the spring 25 to move, meanwhile, the brake system control unit supplies current to the electromagnetic coil 26 according to a preset characteristic curve to generate a magnetic field, and the magnetic conductive material of the piston 22 generates the assistance of the brake pedal 1 under the action of the magnetic field, so that the brake feeling of the driver is optimized;
when the brake is judged to be emergency brake, the brake system control unit of the automobile provides the maximum brake pedal 1 auxiliary power by introducing the maximum current to the electromagnetic coil 26, so that the response time of the brake pedal 1 during emergency brake is reduced, and the brake safety performance is improved;
when the brake pedal 1 is close to the brake feeling simulator 2 downwards and is stepped to the bottom, the limiting block 7 is in contact with the emergency switch to trigger the emergency switch, the brake system control unit of the automobile starts the emergency brake function of the automobile according to the closing signal of the emergency switch, at the moment, the brake system control unit of the automobile does not collect the signals of the induction sensor 6 and the pedal displacement sensor 8 any more, and sends a maximum brake torque demand signal to the brake executing mechanism to implement automobile brake, so that the automobile brake safety performance is improved.
The pedal mechanism can adjust the position of the brake pedal 1 according to the specific requirement of a driver, a first motor 53 drives a first screw rod 54 to rotate and drive a first slide block 52 to horizontally move along a guide rod 55, and the first slide block 52 sequentially drives an angle adjusting device 4, a height adjusting device 3, a brake feeling simulator 2 and the brake pedal 1 to horizontally move, so that the front and rear positions of the brake pedal 1 in the horizontal direction are adjusted; the second motor 47 drives the adjusting nut 45 to linearly move by driving the second lead screw 46 to rotate, meanwhile, the second support rod 48 rotates, the adjusting nut 45 drives the second slider to slide along the slideway 43, and the first support plate 41 rotates to change the included angle between the first support plate 41 and the second support plate 42, so that the angle of the brake pedal 1 is adjusted; the third motor 33 drives the third screw rod 32 to rotate and drive the third slide block 34 to slide along the height adjusting shell 31, and the third slide block 34 sequentially drives the brake feeling simulator 2 and the brake pedal 1 to slide along the height direction, so that the height of the brake pedal 1 is adjusted.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The utility model provides an electric automobile braking sensation electromagnetism regulation formula intelligence pedal mechanism which characterized in that: comprises a brake pedal (1), a brake feeling simulator (2), a height adjusting device (3), an angle adjusting device (4) and a horizontal adjusting device (5) which are arranged in sequence;
the brake feeling simulator (2) comprises a brake push rod (21), a piston (22) and a simulator shell (23), a piston cavity (24) is formed in the simulator shell (23), the piston (22) is arranged in the piston cavity (24), two ends of the brake push rod (21) are fixedly connected with the piston (22) and a brake pedal (1) respectively, an elastic part is arranged between the bottom end of the piston (22) and the piston cavity (24), an electromagnetic coil (26) is fixedly arranged in the simulator shell (23), the electromagnetic coil (26) is located on the periphery of the piston (22), the piston (22) is made of a magnetic conductive material, or the piston (22) is internally provided with a magnetic conductive material;
an induction sensor (6) and a limiting block (7) are arranged on the brake pedal (1), a pedal displacement sensor (8) is arranged between the brake push rod (21) and the brake feeling simulator (2), an emergency switch is arranged on the simulator shell (23), and when the brake pedal (1) is downwards close to the brake feeling simulator (2) and is stepped to the bottom, the limiting block (7) is contacted with the emergency switch to trigger the emergency switch;
the height adjusting device (3) is used for adjusting the height of the brake pedal (1), the angle adjusting device (4) is used for adjusting the angle of the brake pedal (1), and the horizontal adjusting device (5) is used for adjusting the front and back positions of the brake pedal (1);
the horizontal adjusting device (5) comprises a base (51), a first sliding block (52) and a first motor (53), a first screw rod (54) and a guide rod (55) are arranged on the base (51), the guide rod (55) is positioned on two sides of the first screw rod (54), the first sliding block (52) is sleeved on the guide rod (55) in a sliding mode, the first sliding block (52) is in threaded connection with the first screw rod (54), the output end of the first motor (53) is in transmission connection with the first screw rod (54), and the angle adjusting device (4) is arranged on the first sliding block (52);
the angle adjusting device (4) comprises a first supporting plate (41), a second supporting plate (42), a second sliding block, a first supporting rod (44), an adjusting nut (45), a second screw rod (46), a second motor (47) and a second supporting rod (48), the second supporting plate (42) is fixedly arranged on the first sliding block (52), the first supporting plate (41) is rotatably connected with the second supporting plate (42), an included angle is formed between the first supporting plate (41) and the second supporting plate (42), and the height adjusting device (3) is arranged on the first supporting plate (41); the first supporting plate (41) is provided with a slide way (43), the second slider slides up and down along the slide way (43), two ends of the first supporting rod (44) are respectively fixedly connected with the second slider and an adjusting nut (45), the adjusting nut (45) is in threaded connection with a second screw rod (46), the output end of a second motor (47) is in transmission connection with the second screw rod (46), the second supporting rod (48) is in rotary connection with the second supporting plate (42), and the second motor (47) is fixedly arranged on the second supporting rod (48);
height adjusting device (3) are including height adjustment casing (31), third lead screw (32), third motor (33) and third slider (34), height adjustment casing (31) and third motor (33) are all fixed to be set up on first backup pad (41), the output and the transmission of third lead screw (32) of third motor (33) are connected, third slider (34) and third lead screw (32) threaded connection, third slider (34) slide to be set up in height adjustment casing (31), simulator casing (23) and third slider (34) fixed connection.
2. The electromagnetic regulation type intelligent brake pedal mechanism for electric vehicles according to claim 1, wherein: the brake feeling simulator (2) further comprises a buffer gasket (27), the buffer gasket (27) is fixedly arranged in the piston cavity (24), the buffer gasket (27) is located between the top end of the piston (22) and the piston cavity (24), and the buffer gasket (27) is located on the periphery of the brake push rod (21); a buffer cushion block (9) is arranged on the simulator shell (23), and the emergency switch is located in the buffer cushion block (9).
3. The electromagnetic regulation type intelligent brake pedal mechanism for electric vehicles according to claim 1, wherein: the magnetic conductive material is iron.
4. The electromagnetic regulation type intelligent brake pedal mechanism for electric vehicles according to claim 1, wherein: the elastic piece adopts a spring (25).
5. The electromagnetic regulation type intelligent brake pedal mechanism for electric vehicles according to claim 1, wherein: the quantity of the induction sensors (6) and the emergency switches is two, the induction sensors (6) are distributed up and down, and the emergency switches are also distributed up and down.
6. The electromagnetic adjusting type intelligent brake pedal mechanism for the electric vehicle for the brake feeling according to any one of claims 1 to 5, wherein: the induction sensor (6) adopts an infrared induction sensor or an ultrasonic sensor; the pedal displacement sensor (8) adopts a linear displacement sensor.
7. The electromagnetic adjusting type intelligent brake pedal mechanism for the electric vehicle for the brake feeling according to any one of claims 1 to 5, wherein: two ends of the first screw rod (54) are fixedly provided with stop blocks (56), and the stop blocks (56) are used for limiting the front-back sliding stroke of the first sliding block (52).
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| CN202110294547.7A CN112896116B (en) | 2021-03-19 | 2021-03-19 | Electromagnetic regulation type intelligent pedal mechanism for braking feeling of electric automobile |
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| CN202110294547.7A CN112896116B (en) | 2021-03-19 | 2021-03-19 | Electromagnetic regulation type intelligent pedal mechanism for braking feeling of electric automobile |
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| CN112896116B true CN112896116B (en) | 2022-07-08 |
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