WO2016172858A1 - Electromagnetic foot valve applied to energy recycling system of new energy commercial vehicle - Google Patents
Electromagnetic foot valve applied to energy recycling system of new energy commercial vehicle Download PDFInfo
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- WO2016172858A1 WO2016172858A1 PCT/CN2015/077704 CN2015077704W WO2016172858A1 WO 2016172858 A1 WO2016172858 A1 WO 2016172858A1 CN 2015077704 W CN2015077704 W CN 2015077704W WO 2016172858 A1 WO2016172858 A1 WO 2016172858A1
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- ejector rod
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- ejector
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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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/36—Other control devices or valves characterised by definite functions
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- the invention relates to an electromagnetic foot valve of an energy recovery system for a new energy commercial vehicle.
- new energy vehicles are equipped with braking energy recovery systems.
- the principle is to recover the potential energy generated by the weight of the vehicle during the braking process and store it in the form of electrical energy in the super capacitor.
- the electromagnetic foot valve When the system is running, it controls the system by receiving a voltage signal generated during the braking process of the electromagnetic foot valve.
- the electromagnetic foot valve generates a voltage signal reflecting the working relationship of the brake pedal through a displacement sensor mounted on the main valve ejector rod.
- the system collects the signal and makes corresponding commands.
- the traditional electromagnetic foot valve uses a rubber spring and a metal spring, and the whole braking process becomes very heavy because the new energy vehicle increases the idle stroke.
- the pedal displacement of the electromagnetic foot valve will give the generator a power generation signal, which will affect the driving safety.
- the technical problem to be solved by the present invention is to overcome the defects of the prior art mentioned above and provide an electromagnetic foot valve applied to an energy recovery system of a new energy commercial vehicle.
- the driver's foot feel is very comfortable and will not be Because the empty stroke is added, the whole braking process becomes very heavy.
- the driver can judge whether it is emergency braking when braking, so as to ensure that the generator is not charged during emergency braking to ensure that the generator is not charged.
- Driver safety during emergency braking is to overcome the defects of the prior art mentioned above and provide an electromagnetic foot valve applied to an energy recovery system of a new energy commercial vehicle.
- An electromagnetic foot valve applied to a new energy commercial vehicle energy recovery system comprising a connecting body, an upper valve body and a lower valve body, wherein the connecting body is installed above the upper valve body, and the connecting body, the upper valve body and the lower valve body are formed
- the ejector body, the balance valve and the upper chamber valve assembly are sequentially arranged in the cavity, and the air spring is arranged between the ejector seat and the balance valve, and the air spring intake pipe is connected with the air source through the electronically controlled pressure regulating valve.
- An acceleration sensor is connected to the pedestal seat, a top surface is arranged on the ejector base, a potentiometer assembly is arranged on the connecting body, a potentiometer assembly is provided with a ejector rod, and the ejector rod is placed on the top surface of the ejector rod seat, and the potential is The electrical signal of the assembly is connected to an electronically controlled pressure regulating valve.
- the bottom of the ejector base is provided with a lead-out hole in the axial direction
- the ejector pin is provided with a through hole communicating with the lead-out hole in the radial direction, and the air-intake pipe of the air spring is led out to the outside through the lead-out hole and the through-hole.
- the connector is provided with an electrical plug, and the potentiometer assembly and the acceleration sensor are connected to the electrical plug.
- the upper valve body is provided with an upper chamber air outlet and an upper chamber air inlet
- the lower valve body is provided with a lower chamber air outlet a, a lower chamber air inlet and an exhaust port;
- the spring, the upper chamber valve assembly is provided with a valve return spring under the top, the upper chamber valve assembly is provided with a lower chamber valve assembly, and the lower chamber valve assembly is provided with a lower chamber valve spring.
- the invention has the beneficial effects that the invention ensures that the energy recovered by the vehicle is improved, and the foot feeling of the driver stepping on the electromagnetic foot valve is more comfortable, and the acceleration sensor and the ejector base have strong followability, and the acceleration sensor is ensured.
- the feedback information is more timely, and it also ensures that the driver needs emergency braking force to perform matching braking when emergency braking is required at any speed to ensure that the vehicle stops smoothly in the shortest time and distance.
- FIG. 1 is a schematic structural view of an embodiment of the present invention.
- the present invention is an electromagnetic foot valve applied to a new energy commercial vehicle energy recovery system, comprising a connecting body 9, an upper valve body 6 and a lower valve body 18, and the connecting body 9 is mounted above the upper valve body 6.
- the electric plug 2 is mounted on the left side of the connecting body 9, the upper valve body is provided with an upper chamber air outlet 21a and an upper chamber air inlet 11a, and the lower valve body is provided with a lower chamber air outlet 22a, a lower chamber air inlet 12a and a row
- the port 3a, the connecting body 9, the upper valve body 6 and the lower valve body 18 are sequentially provided with a ejector seat 11, a balancing valve 14, and an upper chamber valve assembly 5, and the air spring 13 is mounted on the ejector base 11 and In the middle of the balance piston 14, it is required that the axial direction has no movement gap under static conditions, and the bottom of the ejector base 11 is provided with a lead-out hole in the axial direction, and the ejector base 11 is provided with a through
- the top pole base 11 is connected with an acceleration sensor 10, and the jack seat 11 is provided with
- the top surface 20 is provided with a potentiometer assembly 1 on the connecting body 9, and the top rod 3 of the potentiometer assembly 1 is tightly attached to the top surface 20 of the jack portion 11, and the potential The pressure regulating valve assembly and electronic control electrical signals 1 is connected.
- the connector 9 is provided with an electrical plug 2, and the potentiometer assembly 1 and the acceleration sensor 10 are connected to the electrical plug 2.
- the balance piston 14 is provided with a return spring 15 on the top, and the upper chamber valve assembly 5 is provided with a valve return spring 16 at the top, and the upper chamber valve assembly 5 is provided with a lower chamber valve assembly 7 and a lower chamber valve assembly 7 top.
- a lower chamber valve spring 8 is provided.
- the electronically controlled pressure regulating valve is controlled by an electric signal of the potentiometer assembly 1, and the electronically controlled pressure regulating valve inflates the air spring 13 through the air spring intake pipe 12, and the inflation air pressure increases as the downward displacement amount of the plug 3 increases.
- the driver depresses the brake pedal and the pedal drives the ejector pin 11 to move down.
- the head 3 of the potentiometer assembly 1 will protrude with the movement of the ejector block 11, at which time the potentiometer assembly 1 outputs an electrical signal to the generator controller in the electric brake system, allowing the generator
- the opposite braking torque is formed on the drive shaft to perform braking while charging (energy recovery), and the present invention lengthens the ejector pin 11 because the product is used to lengthen the charging time per braking.
- the empty stroke can ensure that more braking energy is recovered when the vehicle only needs to be slightly decelerated or the braking strength is not strong.
- the signal of the potentiometer is also output to the electronically controlled pressure regulating valve.
- the electronically controlled pressure regulating valve inflates the air spring 13 through the air spring intake pipe 12, and the inflation air pressure increases as the downward displacement of the head 3 increases. That is, the longer the stroke of the driver's stepping on the brake pedal, the higher the air pressure at which the air spring 13 is charged, and the foot feel can be increased as the brake strength increases as the driver brakes. And since the rigidity of the air spring 13 is flexible, it is more comfortable than the conventional rubber spring and metal spring. Reduce the labor intensity of the driver.
- the balance piston 14 When the braking intensity increases, the balance piston 14 "goes" to the empty stroke, starts to the top chamber valve port 4, the upper chamber valve assembly 5 is opened, and the gas from the upper chamber inlet port 11a enters through the opening passage. Upper chamber air outlet 21a. At the same time, the upper chamber valve assembly 5 moves downward to the relay piston 17, and the relay piston 17 moves downward to open the lower chamber valve port 19. The lower chamber valve assembly 7 is opened, and the air from the lower chamber air inlet 12a passes. The opening passage enters the lower chamber air outlet 22a. The air pressure output from the upper chamber air outlet 21a and the lower chamber air outlet 22a brakes the diaphragm sub-chamber in the brake system.
- the design requires that when the output pressure of the upper chamber air outlet 21a and the lower chamber air outlet 22a is less than 0.2 MPa, the potentiometer assembly 1 will continue to have an increasing voltage signal to the motor controller to continuously brake and charge the motor. .
- the electric brake system will cause the potentiometer assembly 1 to be powered off, and no signal is output to the generator, at which time the generator braking and charging operation is stopped.
- the brake pedal When the driver needs emergency braking, the brake pedal will be quickly pressed. At this time, the acceleration sensor 10 mounted on the ejector base 11 will move rapidly. When the acceleration of the movement of the ejector base 11 exceeds the set value, the acceleration sensor 10 will output a signal to the ECU in the electric brake system, the ECU will send a signal to the proportional relay valve, so that the proportional relay valve will quickly output a matching braking force (the braking force is not necessarily the maximum braking force, because the vehicle is low speed) When driving, there is a need for emergency braking in case of emergency. At this time, the matching braking force does not need to be large.
- the process is controlled by the ECU, and the proportional relay valve continuously feeds back information to the ECU and reaches the matching brake.
- the invention adopts the air spring 13 to perform the pedaling force feedback, and utilizes the displacement of the ejector base 11 and the positioner assembly 1 to ensure that the feedback force of the air spring 13 is proportional to the pedaling force, and is flexible due to the rigidity of the air spring 13. To ensure the comfort of the driver's pedaling.
- the invention integrates the acceleration sensor 10 on the ejector base 11, and the acceleration sensor and the ejector base have strong followability, which ensures that the acceleration sensor feedback information is more timely, and also ensures When the driver needs emergency braking at any speed, there will be a qualified braking force to match the braking, ensuring that the vehicle stops smoothly in the shortest time and distance.
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Abstract
An electromagnetic foot valve applied to a high-efficiency energy recycling system of a new energy commercial vehicle, comprising a connection body (9), an upper valve body (6) and a lower valve body (18), wherein the connection body (9) is installed above the upper valve body (6), an ejector rod seat (11), a balance valve (14) and an upper cavity valve assembly (5) are successively provided in a cavity formed by the connection body (9), the upper valve body (6) and the lower valve body (18), an air spring (13) is provided between the ejector rod seat (11) and the balance valve (14), an air spring intake pipe (12) is connected to an air source through an electric control pressure regulation valve, the ejector rod seat (11) is connected to an acceleration sensor (10), the ejector rod seat (11) is provided with a top surface, the connection body (9) is provided with a potentiometer assembly (1), the potentiometer assembly (1) is provided with an ejector rod (3), the ejector rod (3) pushes against the top surface of the ejector rod seat (11), and an electric signal of the potentiometer assembly (1) is connected to the electric control pressure regulation valve. While the recycled energy of a vehicle is increased, the foot feeling when a driver steps the electromagnetic foot valve is more comfortable, when the driver needs the emergency brake at any driving speed, a qualified brake force can be provided to match the brake, and the vehicle can be stopped stably in a shortest distance and in a shortest time.
Description
本发明涉及一种新能源商用车能量回收系统的电磁脚阀。The invention relates to an electromagnetic foot valve of an energy recovery system for a new energy commercial vehicle.
目前，新能源汽车都装有制动能量回收系统。其原理是在制动过程中回收车辆自身重量所产生的势能，并以电能的形式储存于超级电容之中。该系统运行时，都是通过接收电磁脚阀在制动过程中所产生的一个电压信号来控制系统工作。电磁脚阀是通过装在总阀顶杆上的一个位移传感器来发生一个反映制动踏板工作行程关系的电压信号，系统收集该信号并做出相应的指令。传统的电磁脚阀采用橡胶弹簧和金属弹簧，由于因为新能源汽车增加了空行程而将整个制动的过程变得脚感很重。另外，驾驶员在紧急制动时，电磁脚阀的踏板位移会给发电机一个发电信号，影响行车安全。At present, new energy vehicles are equipped with braking energy recovery systems. The principle is to recover the potential energy generated by the weight of the vehicle during the braking process and store it in the form of electrical energy in the super capacitor. When the system is running, it controls the system by receiving a voltage signal generated during the braking process of the electromagnetic foot valve. The electromagnetic foot valve generates a voltage signal reflecting the working relationship of the brake pedal through a displacement sensor mounted on the main valve ejector rod. The system collects the signal and makes corresponding commands. The traditional electromagnetic foot valve uses a rubber spring and a metal spring, and the whole braking process becomes very heavy because the new energy vehicle increases the idle stroke. In addition, when the driver is in emergency braking, the pedal displacement of the electromagnetic foot valve will give the generator a power generation signal, which will affect the driving safety.
发明内容Summary of the invention
本发明要解决的技术问题是克服上述现有技术存在的缺陷，提供一种应用于新能源商用车能量回收系统的电磁脚阀，在空行程工作段，驾驶员的脚感非常舒适，不会因为增加了空行程而将整个制动的过程变得脚感很重；另外驾驶员在制动时，能判断是不是紧急制动，以保证在紧急制动时，发电机不充电，以保证驾驶员在紧急制动时的安全性能。The technical problem to be solved by the present invention is to overcome the defects of the prior art mentioned above and provide an electromagnetic foot valve applied to an energy recovery system of a new energy commercial vehicle. In the idle stroke working section, the driver's foot feel is very comfortable and will not be Because the empty stroke is added, the whole braking process becomes very heavy. In addition, the driver can judge whether it is emergency braking when braking, so as to ensure that the generator is not charged during emergency braking to ensure that the generator is not charged. Driver safety during emergency braking.
本发明解决的技术问题所采用的技术方案是：The technical solution adopted by the technical problem solved by the present invention is:
一种应用于新能源商用车能量回收系统的电磁脚阀，包括连接体、上阀体和下阀体，连接体安装在上阀体的上方，连接体、上阀体和下阀体形成的腔体内依次设有顶杆座、平衡阀、上腔阀门总成，其特征是顶杆座和平衡阀之间设有空气弹簧，空气弹簧进气管通过电控调压阀与气源相连接，顶杆座上连接有加速度传感器，顶杆座上设有顶面，连接体上设有电位器总成，电位器总成设有顶杆，顶杆顶在顶杆座的顶面上，电位器总成的电信号与电控调压阀相连接。An electromagnetic foot valve applied to a new energy commercial vehicle energy recovery system, comprising a connecting body, an upper valve body and a lower valve body, wherein the connecting body is installed above the upper valve body, and the connecting body, the upper valve body and the lower valve body are formed The ejector body, the balance valve and the upper chamber valve assembly are sequentially arranged in the cavity, and the air spring is arranged between the ejector seat and the balance valve, and the air spring intake pipe is connected with the air source through the electronically controlled pressure regulating valve. An acceleration sensor is connected to the pedestal seat, a top surface is arranged on the ejector base, a potentiometer assembly is arranged on the connecting body, a potentiometer assembly is provided with a ejector rod, and the ejector rod is placed on the top surface of the ejector rod seat, and the potential is The electrical signal of the assembly is connected to an electronically controlled pressure regulating valve.
于一实施例中，顶杆座的底部的轴向设有引出孔，顶杆座的径向设有与引出孔相通的通孔，空气弹簧的进气管通过引出孔与通孔引出到外部。In an embodiment, the bottom of the ejector base is provided with a lead-out hole in the axial direction, and the ejector pin is provided with a through hole communicating with the lead-out hole in the radial direction, and the air-intake pipe of the air spring is led out to the outside through the lead-out hole and the through-hole.
于一实施例中，连接体上设有电插头，电位器总成和加速度传感器与电插头相连接。
In an embodiment, the connector is provided with an electrical plug, and the potentiometer assembly and the acceleration sensor are connected to the electrical plug.
于一实施例中，上阀体设有上腔出气口和上腔进气口，下阀体设有下腔出气口a、下腔进气口和排气口；平衡活塞上顶设有回复弹簧，上腔阀门总成下顶设有阀门回位弹簧，上腔阀门总成下设有下腔阀门总成，下腔阀门总成顶设有下腔阀门弹簧。In an embodiment, the upper valve body is provided with an upper chamber air outlet and an upper chamber air inlet, and the lower valve body is provided with a lower chamber air outlet a, a lower chamber air inlet and an exhaust port; The spring, the upper chamber valve assembly is provided with a valve return spring under the top, the upper chamber valve assembly is provided with a lower chamber valve assembly, and the lower chamber valve assembly is provided with a lower chamber valve spring.
本发明的有益效果是：本发明保证提高车辆回收能量的同时，也让驾驶员踩电磁脚阀的脚感更舒适，同时加速度传感器和顶杆座有很强的随动性，保证了加速度传感器回馈信息更及时，同时也保证了驾驶员在任何速度行驶时需要紧急刹车都会有合格的制动力进行匹配制动，保证车辆在最短的时间和距离内平稳的停下来。The invention has the beneficial effects that the invention ensures that the energy recovered by the vehicle is improved, and the foot feeling of the driver stepping on the electromagnetic foot valve is more comfortable, and the acceleration sensor and the ejector base have strong followability, and the acceleration sensor is ensured. The feedback information is more timely, and it also ensures that the driver needs emergency braking force to perform matching braking when emergency braking is required at any speed to ensure that the vehicle stops smoothly in the shortest time and distance.
下面结合附图说明和具体实施方式对本发明做进一步的说明。The invention will be further described with reference to the drawings and specific embodiments.
图1是本发明实施例的结构示意图。1 is a schematic structural view of an embodiment of the present invention.
本发明如图1所示，一种应用于新能源商用车能量回收系统的电磁脚阀，包括连接体9、上阀体6和下阀体18，连接体9安装在上阀体6的上方，电插头2安装在连接体9的左侧，上阀体设有上腔出气口21a和上腔进气口11a，下阀体设有下腔出气口22a、下腔进气口12a和排气口3a，连接体9、上阀体6和下阀体18形成的腔体内依次设有顶杆座11、平衡阀14、上腔阀门总成5，空气弹簧13安装在顶杆座11和平衡活塞14的中间，要求轴向在静态下无运动间隙，顶杆座11的底部的轴向设有引出孔，顶杆座11的径向设有与引出孔相通的通孔，空气弹簧13的进气管14通过引出孔与通孔引出到外部，空气弹簧13进气管14通过电控调压阀与气源相连接，顶杆座11上连接有加速度传感器10，顶杆座11上设有顶面20，连接体9上设有电位器总成1，电位器总成1的顶杆3与顶杆座11的顶面20紧紧贴紧，电位器总成1的电信号与电控调压阀相连接。连接体9上设有电插头2，电位器总成1和加速度传感器10与电插头2相连接。平衡活塞14上顶设有回复弹簧15，上腔阀门总成5下顶设有阀门回位弹簧16，上腔阀门总成5下设有下腔阀门总成7，下腔阀门总成7顶设有下腔阀门弹簧8。通过电位器总成1的电信号来控制电控调压阀，电控调压阀通过空气弹簧进气管12给空气弹簧13充气，充气气压随着顶头3向下位移量的增加而增加。当车辆运行过程中需要制动时，驾驶员踩下制动踏板，踏板驱动顶杆座11向下运
动，此时电位器总成1的顶头3会随着顶杆座11的运动而伸出，此时电位器总成1输出电信号给电制动系统中的发电机控制器，让发电机开始工作，在驱动轴上形成旋向相反的制动力矩进行制动，同时进行充电(能量回收)，由于该产品为了加长每次制动时充电的时间，本发明加长了顶杆座11的空行程，可以保证车辆只需轻微减速或制动强度不大的时候有更多的制动能量被回收。同时电位器的信号还会输出给电控调压阀，电控调压阀通过空气弹簧进气管12给空气弹簧13充气，充气气压随着顶头3向下位移量的增加而增加。即驾驶员踩制动踏板的行程越长，空气弹簧13被充的气压就越高，可以保证驾驶员制动时，脚感随着制动强度的增加而增加。并且由于空气弹簧13的刚度是柔性，较传统的橡胶弹簧、金属弹簧更舒适。减小了驾驶员的劳动强度。The present invention, as shown in FIG. 1, is an electromagnetic foot valve applied to a new energy commercial vehicle energy recovery system, comprising a connecting body 9, an upper valve body 6 and a lower valve body 18, and the connecting body 9 is mounted above the upper valve body 6. The electric plug 2 is mounted on the left side of the connecting body 9, the upper valve body is provided with an upper chamber air outlet 21a and an upper chamber air inlet 11a, and the lower valve body is provided with a lower chamber air outlet 22a, a lower chamber air inlet 12a and a row The port 3a, the connecting body 9, the upper valve body 6 and the lower valve body 18 are sequentially provided with a ejector seat 11, a balancing valve 14, and an upper chamber valve assembly 5, and the air spring 13 is mounted on the ejector base 11 and In the middle of the balance piston 14, it is required that the axial direction has no movement gap under static conditions, and the bottom of the ejector base 11 is provided with a lead-out hole in the axial direction, and the ejector base 11 is provided with a through hole communicating with the lead-out hole in the radial direction, and the air spring 13 The intake pipe 14 is led out to the outside through the lead-out hole and the through hole, and the air spring 13 is connected to the air source through an electronically controlled pressure regulating valve. The top pole base 11 is connected with an acceleration sensor 10, and the jack seat 11 is provided with The top surface 20 is provided with a potentiometer assembly 1 on the connecting body 9, and the top rod 3 of the potentiometer assembly 1 is tightly attached to the top surface 20 of the jack portion 11, and the potential The pressure regulating valve assembly and electronic control electrical signals 1 is connected. The connector 9 is provided with an electrical plug 2, and the potentiometer assembly 1 and the acceleration sensor 10 are connected to the electrical plug 2. The balance piston 14 is provided with a return spring 15 on the top, and the upper chamber valve assembly 5 is provided with a valve return spring 16 at the top, and the upper chamber valve assembly 5 is provided with a lower chamber valve assembly 7 and a lower chamber valve assembly 7 top. A lower chamber valve spring 8 is provided. The electronically controlled pressure regulating valve is controlled by an electric signal of the potentiometer assembly 1, and the electronically controlled pressure regulating valve inflates the air spring 13 through the air spring intake pipe 12, and the inflation air pressure increases as the downward displacement amount of the plug 3 increases. When the vehicle needs to brake during operation, the driver depresses the brake pedal and the pedal drives the ejector pin 11 to move down.
At this time, the head 3 of the potentiometer assembly 1 will protrude with the movement of the ejector block 11, at which time the potentiometer assembly 1 outputs an electrical signal to the generator controller in the electric brake system, allowing the generator At the beginning of the work, the opposite braking torque is formed on the drive shaft to perform braking while charging (energy recovery), and the present invention lengthens the ejector pin 11 because the product is used to lengthen the charging time per braking. The empty stroke can ensure that more braking energy is recovered when the vehicle only needs to be slightly decelerated or the braking strength is not strong. At the same time, the signal of the potentiometer is also output to the electronically controlled pressure regulating valve. The electronically controlled pressure regulating valve inflates the air spring 13 through the air spring intake pipe 12, and the inflation air pressure increases as the downward displacement of the head 3 increases. That is, the longer the stroke of the driver's stepping on the brake pedal, the higher the air pressure at which the air spring 13 is charged, and the foot feel can be increased as the brake strength increases as the driver brakes. And since the rigidity of the air spring 13 is flexible, it is more comfortable than the conventional rubber spring and metal spring. Reduce the labor intensity of the driver.
当制动强度增加时，平衡活塞14“走”完空行程，开始顶到上腔阀口4，上腔阀门总成5被顶开，由上腔进气口11a的气通过打开通道进入到上腔出气口21a。同时上腔阀门总成5向下运动顶到继动活塞17，继动活塞17向下运动打开下腔阀口19，下腔阀门总成7被打开，由下腔进气口12a的气通过打开通道进入到下腔出气口22a。上腔出气口21a和下腔出气口22a输出的气压使制动系统中的膜片分室进行制动。设计要求当上腔出气口21a和下腔出气口22a输出压力小于0.2MPa时，电位器总成1会持续一个越来越大的电压信号给电动机控制器，不断让电动机进行制动和充电工作。当上腔出气口21a和下腔出气口22a输出压力大于0.2MPa时，电制动系统会让电位器总成1断电，无信号输出给发电机，此时发电机制动和充电工作停止。When the braking intensity increases, the balance piston 14 "goes" to the empty stroke, starts to the top chamber valve port 4, the upper chamber valve assembly 5 is opened, and the gas from the upper chamber inlet port 11a enters through the opening passage. Upper chamber air outlet 21a. At the same time, the upper chamber valve assembly 5 moves downward to the relay piston 17, and the relay piston 17 moves downward to open the lower chamber valve port 19. The lower chamber valve assembly 7 is opened, and the air from the lower chamber air inlet 12a passes. The opening passage enters the lower chamber air outlet 22a. The air pressure output from the upper chamber air outlet 21a and the lower chamber air outlet 22a brakes the diaphragm sub-chamber in the brake system. The design requires that when the output pressure of the upper chamber air outlet 21a and the lower chamber air outlet 22a is less than 0.2 MPa, the potentiometer assembly 1 will continue to have an increasing voltage signal to the motor controller to continuously brake and charge the motor. . When the output pressure of the upper chamber air outlet 21a and the lower chamber air outlet 22a is greater than 0.2 MPa, the electric brake system will cause the potentiometer assembly 1 to be powered off, and no signal is output to the generator, at which time the generator braking and charging operation is stopped.
当驾驶员需要紧急刹车时，会快速踩制动踏板，此时安装在顶杆座11上的加速度传感器10会随之快速运动，当顶杆座11移动的加速度超过设定值时，加速度传感器10会输出信号给电制动系统中的ECU，ECU会发出信号给比例继动阀，使比例继动阀迅速线性的输出匹配的制动力(该制动力不一定是最大制动力，因为车辆低速行驶时，碰到紧急情况也会有需要紧急制动，此时匹配的制动力就不需要很大，该过程由ECU控制，并由比例继动阀不断反馈信息到ECU，并达到匹配制动的目的)对车辆进行制动。达到驾驶员需要紧急制动时，不需要将制动踏板踩到底就可以达到紧急制动的效果。本发明采用空气弹簧13进行踩踏力反馈，利用顶杆座11的位移和点位器总成1控制，保证空气弹簧13的反馈力和踩踏力成正比，并且由于空气弹簧13的刚度时柔性的，保证驾驶员踩踏的舒适性。本发明将加速度传感器10集成到顶杆座11上，加速度传感器和顶杆座有很强的随动性，保证了加速度传感器回馈信息更及时，同时也保证
了驾驶员在任何速度行驶时需要紧急刹车都会有合格的制动力进行匹配制动，保证车辆在最短的时间和距离内平稳的停下来。
When the driver needs emergency braking, the brake pedal will be quickly pressed. At this time, the acceleration sensor 10 mounted on the ejector base 11 will move rapidly. When the acceleration of the movement of the ejector base 11 exceeds the set value, the acceleration sensor 10 will output a signal to the ECU in the electric brake system, the ECU will send a signal to the proportional relay valve, so that the proportional relay valve will quickly output a matching braking force (the braking force is not necessarily the maximum braking force, because the vehicle is low speed) When driving, there is a need for emergency braking in case of emergency. At this time, the matching braking force does not need to be large. The process is controlled by the ECU, and the proportional relay valve continuously feeds back information to the ECU and reaches the matching brake. The purpose of braking the vehicle. When the driver needs emergency braking, it is not necessary to step on the brake pedal to achieve the effect of emergency braking. The invention adopts the air spring 13 to perform the pedaling force feedback, and utilizes the displacement of the ejector base 11 and the positioner assembly 1 to ensure that the feedback force of the air spring 13 is proportional to the pedaling force, and is flexible due to the rigidity of the air spring 13. To ensure the comfort of the driver's pedaling. The invention integrates the acceleration sensor 10 on the ejector base 11, and the acceleration sensor and the ejector base have strong followability, which ensures that the acceleration sensor feedback information is more timely, and also ensures
When the driver needs emergency braking at any speed, there will be a qualified braking force to match the braking, ensuring that the vehicle stops smoothly in the shortest time and distance.
Claims (4)
- 一种应用于新能源商用车能量回收系统的电磁脚阀，包括连接体、上阀体和下阀体，连接体安装在上阀体的上方，连接体、上阀体和下阀体形成的腔体内依次设有顶杆座、平衡阀、上腔阀门总成，其特征是顶杆座和平衡阀之间设有空气弹簧，空气弹簧进气管通过电控调压阀与气源相连接，顶杆座上连接有加速度传感器，顶杆座上设有顶面，连接体上设有电位器总成，电位器总成设有顶杆，顶杆顶在顶杆座的顶面上，电位器总成的电信号与电控调压阀相连接。An electromagnetic foot valve applied to a new energy commercial vehicle energy recovery system, comprising a connecting body, an upper valve body and a lower valve body, wherein the connecting body is installed above the upper valve body, and the connecting body, the upper valve body and the lower valve body are formed The ejector body, the balance valve and the upper chamber valve assembly are sequentially arranged in the cavity, and the air spring is arranged between the ejector seat and the balance valve, and the air spring intake pipe is connected with the air source through the electronically controlled pressure regulating valve. An acceleration sensor is connected to the pedestal seat, a top surface is arranged on the ejector base, a potentiometer assembly is arranged on the connecting body, a potentiometer assembly is provided with a ejector rod, and the ejector rod is placed on the top surface of the ejector rod seat, and the potential is The electrical signal of the assembly is connected to an electronically controlled pressure regulating valve.
- 根据权利要求1所述的一种应用于新能源商用车能量回收系统的电磁脚阀，其特征是顶杆座的底部的轴向设有引出孔，顶杆座的径向设有与引出孔相通的通孔，空气弹簧的进气管通过引出孔与通孔引出到外部。The electromagnetic foot valve applied to the energy recovery system of a new energy commercial vehicle according to claim 1, wherein the bottom of the pedestal seat is provided with a lead-out hole in the axial direction, and the radial direction of the ejector base is provided with the lead-out hole The through holes of the air springs are taken out to the outside through the lead holes and the through holes.
- 根据权利要求1或2所述的一种应用于新能源商用车能量回收系统的电磁脚阀，其特征是连接体上设有电插头，电位器总成和加速度传感器与电插头相连接。An electromagnetic foot valve applied to a new energy commercial vehicle energy recovery system according to claim 1 or 2, wherein the connector is provided with an electrical plug, and the potentiometer assembly and the acceleration sensor are connected to the electrical plug.
- 根据权利要求1或2所述的一种应用于新能源商用车能量回收系统的电磁脚阀，其特征是上阀体设有上腔出气口和上腔进气口，下阀体设有下腔出气口、下腔进气口和排气口；平衡活塞上顶设有回复弹簧，上腔阀门总成下顶设有阀门回位弹簧，上腔阀门总成下设有下腔阀门总成，下腔阀门总成顶设有下腔阀门弹簧。 The electromagnetic foot valve applied to the energy recovery system of a new energy commercial vehicle according to claim 1 or 2, wherein the upper valve body is provided with an upper chamber air outlet and an upper chamber air inlet, and the lower valve body is provided with a lower valve body a cavity outlet port, a lower chamber inlet port and an exhaust port; a balance spring is provided with a return spring on the top, a valve return spring is arranged on the upper part of the upper chamber valve assembly, and a lower chamber valve assembly is arranged under the upper chamber valve assembly The lower chamber valve assembly is provided with a lower chamber valve spring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU92724A LU92724B1 (en) | 2015-04-28 | 2015-04-28 | Electromagnetic foot valve applied to energy recycling system of new energy commercial vehicle |
| PCT/CN2015/077704 WO2016172858A1 (en) | 2015-04-28 | 2015-04-28 | Electromagnetic foot valve applied to energy recycling system of new energy commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/077704 WO2016172858A1 (en) | 2015-04-28 | 2015-04-28 | Electromagnetic foot valve applied to energy recycling system of new energy commercial vehicle |
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| WO2016172858A1 true WO2016172858A1 (en) | 2016-11-03 |
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| PCT/CN2015/077704 WO2016172858A1 (en) | 2015-04-28 | 2015-04-28 | Electromagnetic foot valve applied to energy recycling system of new energy commercial vehicle |
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| WO (1) | WO2016172858A1 (en) |
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| CN107697051B (en) * | 2017-11-11 | 2023-10-03 | 吉林大学 | Pneumatic braking system for single-side double-air-chamber axle |
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| CN107953874A (en) * | 2017-12-22 | 2018-04-24 | 易孝威 | A kind of automatically controlled emergency braking system for pneumatic brake |
Also Published As
| Publication number | Publication date |
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| LU92724B1 (en) | 2016-12-22 |
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