CN110901569A - Novel passenger car door safety system and control strategy - Google Patents
Novel passenger car door safety system and control strategy Download PDFInfo
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- CN110901569A CN110901569A CN201911406016.1A CN201911406016A CN110901569A CN 110901569 A CN110901569 A CN 110901569A CN 201911406016 A CN201911406016 A CN 201911406016A CN 110901569 A CN110901569 A CN 110901569A
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- valve
- electromagnetic valve
- passenger car
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a novel passenger car door safety system and a control strategy.A hand brake air cylinder and an air port A of a first two-position three-way electromagnetic valve are respectively connected with two air ports of a hand brake, and an air port B of the first two-position three-way electromagnetic valve is connected to a rear brake air chamber through a two-way check valve; the C air port of the first two-position three-way electromagnetic valve is an air outlet, and the first two-position three-way electromagnetic valve is connected with the instrument; the emergency valve is connected with the door pump, an air port A of the second two-position three-way electromagnetic valve is connected with the emergency valve, an air port B is connected with the auxiliary air reservoir, an air port C is connected with a branch road between the door pump and the emergency valve, and the second two-position three-way electromagnetic valve is connected with the instrument. The invention improves the leak of the door safety system, ensures the safety of the driver and passengers and is convenient for the driver to drive. The cost of the two-position three-way electromagnetic valves is not increased too much, and the vehicle can run more reliably due to the comprehensive door safety system control strategy.
Description
The technical field is as follows:
the invention relates to a novel passenger car door safety system and a control strategy.
Background art:
the reliability of the vehicle door system is improved, and the key significance is achieved for guaranteeing the safe driving of the vehicle and the life safety of passengers. At present, the control strategy of the door safety system in the passenger car industry is relatively perfect, but a vulnerability still exists, and the control strategy comprises the following steps:
1) the emergency valve does not lose efficacy when the vehicle runs at a high speed;
2) the throttle is effective when the door is not closed.
The invention content is as follows:
the present invention provides a novel door security system and control strategy for passenger cars to solve the above-mentioned problems of the prior art. The invention makes strategy analysis for the door safety system to ensure that a driver can drive more conveniently, safely and effectively and ensure the personal safety of passengers and pedestrians.
The technical scheme adopted by the invention is as follows:
a novel passenger door security control strategy comprising:
1) a first two-position three-way electromagnetic valve with A, B, C air ports is connected in series between a hand brake and a two-way check valve in a passenger car hand brake air path, the air port A of the first two-position three-way electromagnetic valve is connected with the hand brake, the air port B is connected with the two-way check valve, and the air port C is an exhaust port;
when a passenger car is parked, a hand brake is in a parking gear, a gas port B and a gas port C of a first two-position three-way electromagnetic valve are communicated, gas in a hand brake gas path is released, a rear brake gas chamber connected to the hand brake gas path is deflated, a rear wheel is parked and braked, a hand brake switch is switched off and sends a hand brake closing signal to an instrument, and the instrument displays a parking mark;
when the passenger car starts or runs, the hand brake is in a running gear, the air ports A and B of the first two-position three-way electromagnetic valve are communicated, the hand brake switch is opened and sends a hand brake closing signal to the instrument, and the parking mark on the instrument disappears;
2) when the passenger car is started and is in an idling state, the instrument outputs a door power supply and enables the door switch to be powered on and in an effective state, the door opening and closing switch controls the power on and off of a door electromagnetic valve of the passenger car door and correspondingly controls the opening and closing of the passenger car door, if the passenger car door is opened, a door opening signal of the passenger car door is transmitted to the instrument and the ECU, when a driver steps on an accelerator, the ECU receives a signal of stepping on the accelerator and cannot execute the accelerator signal, and the purpose that the accelerator is invalid when the door is opened is achieved;
3) when the passenger car starts and the speed is less than 5km/h, if the door of the passenger car is opened, the instrument outputs the power supply of the door and leads the air ports B and C of the first two-position three-way electromagnetic valve to be communicated, the rear brake air chamber is deflated and the rear wheel is braked, thus achieving the purpose of parking;
4) when the speed of the vehicle is more than 5km/h and the door of the passenger vehicle is opened, if the door of the passenger vehicle is opened, a door opening signal of the door of the passenger vehicle is transmitted to the instrument and the ECU, the ECU receives a signal of stepping on the accelerator and cannot execute the accelerator signal, meanwhile, the instrument outputs a door power supply and enables a gas port B and a gas port C of the first two-position three-way electromagnetic valve to be communicated, the rear brake chamber is deflated and the rear wheel is braked, and the speed of the vehicle is gradually reduced and the parking purpose is achieved;
5) a second two-position three-way electromagnetic valve with A, B, C air ports is connected in series between the door auxiliary air cylinder and the emergency valve in the air passage of the emergency valve of the passenger car, the air port A of the second two-position three-way electromagnetic valve is connected with the emergency valve, the air port B is connected with the door auxiliary air cylinder, the air port C is connected with a branch passage between the door pump and the emergency valve,
when the instrument of the passenger car detects that the speed of the car is not more than 5km/h and the door of the passenger car is closed, the air ports A and B of the second two-position three-way electromagnetic valve are communicated, the gas in the door auxiliary gas storage cylinder reaches the door pump from the emergency valve, and the emergency valve realizes the gas release function;
when the speed of a vehicle is greater than 5km/h and a door of a passenger car is closed, the instrument outputs a power supply of the electromagnetic valve and enables a gas port B and a gas port C of the second two-position three-way electromagnetic valve to be communicated, gas of the door auxiliary gas storage cylinder is directly conveyed to the door pump, and the emergency valve cannot achieve a gas release function, so that the emergency valve is in an invalid state in the driving process, and the door of the passenger car cannot be opened.
Furthermore, the ECU is connected with a one-key unlocking switch, when the door is damaged and is always in an open state, so that the passenger car cannot run, the one-key unlocking switch is pressed, and when the ECU receives two signals of door opening and unlocking at the same time, the ECU controls the maximum running speed of the passenger car to be not more than 30 km/h.
Further, when the passenger car is parked and closed, and the door anti-pinch switch of the passenger car detects that the door closing pressure of the passenger car door is greater than 0.6Mpa, the door anti-pinch switch is automatically closed, so that the door electromagnetic valve of the passenger car door is switched on to be normally energized, and the passenger car door is opened.
Further, the manual brake gas circuit includes manual brake, bi-pass check valve, first two-position three way solenoid valve and manual brake air receiver, the A gas port and the manual brake air receiver of first two-position three way solenoid valve are connected respectively to two gas ports of manual brake, and first two-position three way solenoid valve's B gas port and bi-pass check valve link to each other, it links to each other through a four guarantor valves between manual brake air receiver and the supplementary air receiver of door.
The invention also provides a novel passenger car door safety system which comprises an instrument, an ECU (electronic control Unit), a door electromagnetic valve, a power supply, a car door switch, a rear brake air chamber, a hand brake air path and an emergency valve air path, wherein the instrument is connected with the ECU, the door electromagnetic valve is connected with the instrument through the car door switch, the power supply supplies electric energy to the instrument, the ECU and the door electromagnetic valve, the hand brake air path comprises a hand brake, a two-way check valve, a hand brake air cylinder and a first two-position three-way electromagnetic valve with A, B, C air ports, the two air ports of the hand brake are respectively connected with the hand brake air cylinder and the air port A of the first two-position three-way electromagnetic valve, and the air port B of the first two-position three-way electromagnetic valve is connected to the rear; the C air port of the first two-position three-way electromagnetic valve is an air outlet, and the first two-position three-way electromagnetic valve is connected with the instrument; the emergency valve air passage comprises an emergency valve, a door pump, a door auxiliary air storage cylinder and a second two-position three-way electromagnetic valve with A, B, C air ports, the emergency valve is connected with the door pump, an air port A of the second two-position three-way electromagnetic valve is connected with the emergency valve, an air port B of the second two-position three-way electromagnetic valve is connected with the door auxiliary air storage cylinder, an air port C of the second two-position three-way electromagnetic valve is connected with a branch passage between the door pump and the emergency valve, and the second two-position three-way; and the hand brake air cylinder and the door auxiliary air cylinder are connected through a four-protection valve.
Furthermore, the ECU is connected with a one-key unlocking switch, and the other end of the one-key unlocking switch is connected with a negative signal (namely, grounded).
Further, a hand brake switch is connected to the first two-position three-way electromagnetic valve and connected with the instrument.
The invention has the following beneficial effects:
1. the door safety system has perfect loopholes, ensures the safety of drivers and passengers and is convenient for the drivers to drive.
2. The invention uses two-position three-way electromagnetic valves, the cost is not increased too much, and the vehicle can run more reliably by a comprehensive door safety system control strategy.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of a fuel passenger car.
Fig. 2 is a structural schematic diagram of the pure electric bus in the invention.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the novel passenger car door safety system of the present invention comprises an instrument 1, an ECU2, a door electromagnetic valve 3, a power supply 4, a car door switch 5, a rear brake air chamber 9, a hand brake air path and an emergency valve air path, wherein the instrument 1 is connected with the ECU2, the door electromagnetic valve 3 is connected with the instrument 1 through the car door switch 5, and the power supply 4 provides electric energy for the instrument 1, the ECU and the door electromagnetic valve 3.
The hand brake air path comprises a hand brake 61, a two-way check valve 63, a hand brake air cylinder 64 and a first two-position three-way electromagnetic valve 62 with A, B, C air ports, the two air ports of the hand brake 61 are respectively connected with the hand brake air cylinder 64 and the A air port of the first two-position three-way electromagnetic valve 62, and the B air port of the first two-position three-way electromagnetic valve 62 is connected to the rear brake air chamber 9 through the two-way check valve 63. The C port of the first two-position three-way solenoid valve 62 is an exhaust port, and the first two-position three-way solenoid valve 62 is connected to the meter 1.
The emergency valve air path comprises an emergency valve 71, a door pump 73, a door auxiliary air storage cylinder 74 and a second two-position three-way electromagnetic valve 72 with A, B, C air ports, the emergency valve 71 is connected with the door pump 73, an air port A of the second two-position three-way electromagnetic valve 72 is connected with the emergency valve 71, an air port B is connected with the door auxiliary air storage cylinder 74, an air port C is connected with a branch path between the door pump 73 and the emergency valve 71, and the second two-position three-way electromagnetic valve 72 is connected with the instrument 1. The hand brake air cylinder 64 and the door auxiliary air cylinder 74 are connected through a four-way valve 11.
The ECU is connected with a one-key unlock switch 12, and one end of the one-key unlock switch 12 is connected to a negative signal (i.e., grounded).
The first two-position three-way electromagnetic valve 62 is connected with a hand brake switch 10, and the hand brake switch 10 is connected with the instrument 1.
The invention discloses a control strategy of a novel passenger car door safety system, which comprises the following specific steps:
1) a first two-position three-way electromagnetic valve with A, B, C air ports is connected in series between a hand brake and a two-way check valve in a passenger car hand brake air path, the air port A of the first two-position three-way electromagnetic valve is connected with the hand brake, the air port B is connected with the two-way check valve, and the air port C is an exhaust port;
when a passenger car is parked, a hand brake is in a parking gear, a gas port B and a gas port C of a first two-position three-way electromagnetic valve are communicated, gas in a hand brake gas path is released, a rear brake gas chamber connected to the hand brake gas path is deflated, a rear wheel is parked and braked, a hand brake switch is switched off and sends a hand brake closing signal to an instrument, and the instrument displays a parking mark;
when the passenger car starts or runs, the hand brake is in a running gear, the air ports A and B of the first two-position three-way electromagnetic valve are communicated, the hand brake switch is opened and sends a hand brake closing signal to the instrument, and the parking mark on the instrument disappears;
2) when the passenger car is started and is in an idling state, the instrument outputs a door power supply and enables the door switch to be powered on and in an effective state, the door opening and closing switch controls the power on and off of a door electromagnetic valve of the passenger car door and correspondingly controls the opening and closing of the passenger car door, if the passenger car door is opened, a door opening signal of the passenger car door is transmitted to the instrument and the ECU, when a driver steps on an accelerator, the ECU receives a signal of stepping on the accelerator and cannot execute the accelerator signal, and the purpose that the accelerator is invalid when the door is opened is achieved;
3) when the passenger car starts and the speed is less than 5km/h, if the door of the passenger car is opened, the instrument outputs the power supply of the door and leads the air ports B and C of the first two-position three-way electromagnetic valve to be communicated, the rear brake air chamber is deflated and the rear wheel is braked, thus achieving the purpose of parking;
4) when the speed of the vehicle is more than 5km/h and the door of the passenger vehicle is opened, if the door of the passenger vehicle is opened, a door opening signal of the door of the passenger vehicle is transmitted to the instrument and the ECU, the ECU receives a signal of stepping on the accelerator and cannot execute the accelerator signal, meanwhile, the instrument outputs a door power supply and enables a gas port B and a gas port C of the first two-position three-way electromagnetic valve to be communicated, the rear brake chamber is deflated and the rear wheel is braked, and the speed of the vehicle is gradually reduced and the parking purpose is achieved;
5) a second two-position three-way electromagnetic valve with A, B, C air ports is connected in series between a door auxiliary air storage cylinder and an emergency valve in an air path of an emergency valve of a passenger car, an A air port of the second two-position three-way electromagnetic valve is connected with the emergency valve, a B air port is connected with the door auxiliary air storage cylinder, a C air port is connected with a branch path between a door pump and the emergency valve, when an instrument of the passenger car detects that the speed of the passenger car is not more than 5km/h and a door of the passenger car is closed, the A air port and the B air port of the second two-position three-way electromagnetic valve are communicated, the gas in the door auxiliary air storage cylinder reaches the;
when the speed of a vehicle is greater than 5km/h and a door of a passenger car is closed, the instrument outputs a power supply of the electromagnetic valve and enables a gas port B and a gas port C of the second two-position three-way electromagnetic valve to be communicated, gas of the door auxiliary gas storage cylinder is directly conveyed to the door pump, and the emergency valve cannot achieve a gas release function, so that the emergency valve is in an invalid state in the driving process, and the door of the passenger car cannot be opened.
The ECU is connected with a one-key unlocking switch, when the door is damaged and is always in an open state, so that the passenger car cannot run, the one-key unlocking switch is pressed, and when the ECU receives two signals of door opening and unlocking at the same time, the ECU controls the maximum running speed of the passenger car to be not more than 30 km/h.
The one-key unlocking switch is used for releasing the states of the vehicle and the door when the vehicle is interlocked, and is mainly used for preventing the vehicle from running and causing many troubles for a driver when the vehicle door is always in an open state when being damaged. When the switch is used for the situation that the vehicle door cannot be closed, a driver can still safely drive the vehicle at a low speed, and the driver can conveniently handle the vehicle. And the switch effective signal is sent to the instrument and the ECU, and the corresponding program is executed after the signal is received. When the door opening and the unlocking are simultaneously carried out, all door opening signals are shielded, and the unlocking switch enables the vehicle to safely run within 30 km/h.
In addition, when the passenger car is parked and closed, and the door anti-pinch switch of the passenger car detects that the door closing pressure of the passenger car door is greater than 0.6Mpa (namely, a person is at the door closing position), the door anti-pinch switch is automatically closed, the door electromagnetic valve of the passenger car door is switched on to be normally energized, the passenger car door is opened, and the door is opened to ensure that the door can not be pinched to the person under any condition.
With reference to fig. 2, the system and control strategy of the present invention can also be used in pure electric passenger cars, and the working principle of the pure electric passenger car door safety system control strategy is basically the same as that of a conventional car, and the difference is that: the instrument of pure [ electric ] motor coach CAN send VCU (vehicle control unit) through the CAN line, and door opening signal and a key unblock switch directly send the instrument, and the instrument passes through CAN line transmission signal again, makes VCU control MCU (motor controller), and then control motor moment of torsion. When the door opening signal is effective and the vehicle speed is less than 5km/h, the VCU sends a command to enable the motor torque to be zero (namely the motor is ineffective), and the state that the accelerator is ineffective is achieved.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (7)
1. A novel passenger door safety control strategy is characterized in that: the method comprises the following steps:
1) a first two-position three-way electromagnetic valve with A, B, C air ports is connected in series between a hand brake and a two-way check valve in a passenger car hand brake air path, the air port A of the first two-position three-way electromagnetic valve is connected with the hand brake, the air port B is connected with the two-way check valve, and the air port C is an exhaust port;
when a passenger car is parked, a hand brake is in a parking gear, a gas port B and a gas port C of a first two-position three-way electromagnetic valve are communicated, gas in a hand brake gas path is released, a rear brake gas chamber connected to the hand brake gas path is deflated, a rear wheel is parked and braked, a hand brake switch is switched off and sends a hand brake closing signal to an instrument, and the instrument displays a parking mark;
when the passenger car starts or runs, the hand brake is in a running gear, the air ports A and B of the first two-position three-way electromagnetic valve are communicated, the hand brake switch is opened and sends a hand brake closing signal to the instrument, and the parking mark on the instrument disappears;
2) when the passenger car is started and is in an idling state, the instrument outputs a door power supply and enables the door switch to be powered on and in an effective state, the door opening and closing switch controls the power on and off of a door electromagnetic valve of the passenger car door and correspondingly controls the opening and closing of the passenger car door, if the passenger car door is opened, a door opening signal of the passenger car door is transmitted to the instrument and the ECU, when a driver steps on an accelerator, the ECU receives a signal of stepping on the accelerator and cannot execute the accelerator signal, and the purpose that the accelerator is invalid when the door is opened is achieved;
3) when the passenger car starts and the speed is less than 5km/h, if the door of the passenger car is opened, the instrument outputs the power supply of the door and leads the air ports B and C of the first two-position three-way electromagnetic valve to be communicated, the rear brake air chamber is deflated and the rear wheel is braked, thus achieving the purpose of parking;
4) when the speed of the vehicle is more than 5km/h and the door of the passenger vehicle is opened, if the door of the passenger vehicle is opened, a door opening signal of the door of the passenger vehicle is transmitted to the instrument and the ECU, the ECU receives a signal of stepping on the accelerator and cannot execute the accelerator signal, meanwhile, the instrument outputs a door power supply and enables a gas port B and a gas port C of the first two-position three-way electromagnetic valve to be communicated, the rear brake chamber is deflated and the rear wheel is braked, and the speed of the vehicle is gradually reduced and the parking purpose is achieved;
5) a second two-position three-way electromagnetic valve with A, B, C air ports is connected in series between the door auxiliary air cylinder and the emergency valve in the air passage of the emergency valve of the passenger car, the air port A of the second two-position three-way electromagnetic valve is connected with the emergency valve, the air port B is connected with the door auxiliary air cylinder, the air port C is connected with a branch passage between the door pump and the emergency valve,
when the instrument of the passenger car detects that the speed of the car is not more than 5km/h and the door of the passenger car is closed, the air ports A and B of the second two-position three-way electromagnetic valve are communicated, the gas in the door auxiliary gas storage cylinder reaches the door pump from the emergency valve, and the emergency valve realizes the gas release function;
when the speed of a vehicle is greater than 5km/h and a door of a passenger car is closed, the instrument outputs a power supply of the electromagnetic valve and enables a gas port B and a gas port C of the second two-position three-way electromagnetic valve to be communicated, gas of the door auxiliary gas storage cylinder is directly conveyed to the door pump, and the emergency valve cannot achieve a gas release function, so that the emergency valve is in an invalid state in the driving process, and the door of the passenger car cannot be opened.
2. A novel passenger door security control strategy as claimed in claim 1, wherein: the ECU is connected with a one-key unlocking switch, when the door is damaged and is always in an open state, so that the passenger car cannot run, the one-key unlocking switch is pressed, and when the ECU receives two signals of door opening and unlocking at the same time, the ECU controls the maximum running speed of the passenger car to be not more than 30 km/h.
3. A novel passenger door security control strategy as claimed in claim 1, wherein: when the passenger car is parked and closed, and the door anti-pinch switch of the passenger car detects that the door closing pressure of the passenger car door is greater than 0.6Mpa, the door anti-pinch switch is automatically closed, so that the door electromagnetic valve of the passenger car door is switched on to be normally powered on, and the passenger car door is opened.
4. A novel passenger door security control strategy as claimed in claim 1, wherein: the manual brake gas circuit includes manual brake, bi-pass check valve, first two-position three way solenoid valve and manual brake gas receiver, first two-position three way solenoid valve's A gas port and manual brake gas receiver are connected respectively to two gas ports of manual brake, and first two-position three way solenoid valve's B gas port and bi-pass check valve link to each other, link to each other through a four guarantor valve between manual brake gas receiver and the supplementary gas receiver of door.
5. The utility model provides a novel passenger train door safety coefficient, includes instrument (1), ECU (2), door solenoid valve (3), power (4), door switch (5), back brake chamber (9), manual brake gas circuit and emergency valve gas circuit, instrument (1) links to each other with ECU (2), and door solenoid valve (3) link to each other with instrument (1) through door switch (5), and power (4) provide the electric energy for instrument (1), ECU (2) and door solenoid valve (3), its characterized in that:
the hand brake gas circuit comprises a hand brake (61), a two-way check valve (63), a hand brake gas cylinder (64) and a first two-position three-way electromagnetic valve (62) with A, B, C gas ports,
two air ports of the hand brake (61) are respectively connected with an air port A of the hand brake air cylinder (64) and an air port A of the first two-position three-way electromagnetic valve (62), and an air port B of the first two-position three-way electromagnetic valve (62) is connected with a two-way check valve (63) and is connected to the rear brake air chamber (9) through the two-way check valve; the C air port of the first two-position three-way electromagnetic valve (62) is an air outlet, and the first two-position three-way electromagnetic valve (62) is connected with the instrument (1);
the emergency valve air passage comprises an emergency valve (71), a door pump (73), a door auxiliary air storage cylinder (74) and a second two-position three-way electromagnetic valve (72) with A, B, C air ports, wherein the emergency valve (71) is connected with the door pump (73), the air port A of the second two-position three-way electromagnetic valve (72) is connected with the emergency valve (71), the air port B is connected with the door auxiliary air storage cylinder (74), the air port C is connected with a branch passage between the door pump (73) and the emergency valve (71), and the second two-position three-way electromagnetic valve (72) is connected with the instrument (1); the hand brake air cylinder (64) is connected with the door auxiliary air cylinder (74) through a four-protection valve (11).
6. A novel passenger door security system as claimed in claim 5, wherein: the ECU (2) is connected with a one-key unlocking switch (12), and the other end of the one-key unlocking switch (12) is connected with a negative signal.
7. A novel passenger door security system as claimed in claim 5, wherein: and a hand brake switch (10) is connected to the first two-position three-way electromagnetic valve (62), and the hand brake switch (10) is connected with the instrument (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406016.1A CN110901569A (en) | 2019-12-31 | 2019-12-31 | Novel passenger car door safety system and control strategy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406016.1A CN110901569A (en) | 2019-12-31 | 2019-12-31 | Novel passenger car door safety system and control strategy |
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| CN110901569A true CN110901569A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911406016.1A Pending CN110901569A (en) | 2019-12-31 | 2019-12-31 | Novel passenger car door safety system and control strategy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605412A (en) * | 2020-06-05 | 2020-09-01 | 江铃汽车股份有限公司 | Creep safety control method for pure electric vehicle |
| CN111890896A (en) * | 2020-08-14 | 2020-11-06 | 安徽安凯汽车股份有限公司 | School bus passenger door safety control system |
| CN113323937A (en) * | 2021-06-23 | 2021-08-31 | 宁波佳尔灵气动机械有限公司 | Valve terminal |
-
2019
- 2019-12-31 CN CN201911406016.1A patent/CN110901569A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605412A (en) * | 2020-06-05 | 2020-09-01 | 江铃汽车股份有限公司 | Creep safety control method for pure electric vehicle |
| CN111890896A (en) * | 2020-08-14 | 2020-11-06 | 安徽安凯汽车股份有限公司 | School bus passenger door safety control system |
| CN113323937A (en) * | 2021-06-23 | 2021-08-31 | 宁波佳尔灵气动机械有限公司 | Valve terminal |
| CN113323937B (en) * | 2021-06-23 | 2024-02-20 | 宁波佳尔灵气动机械有限公司 | Valve island |
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