CN214001342U - Power takeoff control system of fuel cell hydrogen energy special vehicle - Google Patents
Power takeoff control system of fuel cell hydrogen energy special vehicle Download PDFInfo
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- CN214001342U CN214001342U CN202022100900.7U CN202022100900U CN214001342U CN 214001342 U CN214001342 U CN 214001342U CN 202022100900 U CN202022100900 U CN 202022100900U CN 214001342 U CN214001342 U CN 214001342U
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Abstract
The utility model discloses a power takeoff control system of a fuel cell hydrogen energy special vehicle, which mainly comprises a vehicle control unit, an input switch, a sensor switch, an execution device, a high-pressure connecting air pipe, a power takeoff and a battery; the execution device includes: the device comprises a motor, a motor controller, a gearbox and a gearbox controller; the motor is electrically connected with the motor controller, and an output shaft of the power takeoff is rigidly connected with a gear of the gearbox through a gear; the vehicle control unit is electrically connected with the power takeoff through the sensor switch; the whole vehicle controller and the input switch are respectively electrically connected with the gearbox controller; and the vehicle control unit, the gearbox controller and the motor controller are all connected with a CAN bus. The utility model has the advantages that: the optimized design of the power take-off strategy of the fuel cell hydrogen energy automobile 2-gear transmission motor assembly is realized, the cost can be effectively reduced, and the structure is simple, and the convenience, the safety and the reliability are high.
Description
Technical Field
The utility model relates to a fuel cell hydrogen can the automobile vehicle power control field, especially involves a power takeoff control system of fuel cell hydrogen can special-purpose vehicle.
Background
With the continuous development of economy, the energy and environmental problems become more severe, and under the promotion of various national popularization policies, the new energy special vehicle is widely applied to urban environmental sanitation and short-distance transportation. For special-purpose vehicles, besides the normal driving force demand of the vehicle, there is usually an additional power output demand, such as a water pump system of a sprinkler vehicle, a garbage compression system of a garbage collection and transportation vehicle, a loading system of a dump truck, etc., and the convenience, reliability and safety of the power takeoff system have become important performance indexes of new energy special-purpose vehicles.
Generally, a conventional power takeoff control strategy needs to be matched with a 4-gear transmission or a transmission with an M (manual mode), so that severe function control requirements can be provided for the control strategy of the transmission and the power takeoff control strategy of a whole vehicle, in recent years, with the application of a two-gear transmission motor assembly on a new energy vehicle, a power takeoff on a 2-gear transmission becomes an optimal solution for extra power output of the new energy special vehicle due to the advantages of wide output range, simple system, low cost and the like, and therefore the power takeoff control strategy can be optimized by adopting the 2-gear transmission motor assembly.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses a power takeoff of 2 grades of gearboxes on the collocation fuel cell hydrogen energy car, through the gear shift strategy of whole car controller rational planning, the subdividing is into, and functional power takeoff and economic nature power takeoff provide a fuel cell hydrogen energy special-purpose vehicle power takeoff control system.
A power takeoff control system of a fuel cell hydrogen energy special vehicle mainly comprises a vehicle control unit, an input switch, a sensor switch, an execution device, a high-voltage connecting air pipe, a power takeoff and a battery;
the execution device includes: the device comprises a motor, a motor controller, a gearbox and a gearbox controller;
the motor is electrically connected with the motor controller, and the mechanical part of the power takeoff is rigidly connected with a gear of the gearbox through a gear;
the vehicle control unit is electrically connected with the power takeoff through the sensor switch;
the whole vehicle controller and the input switch are respectively electrically connected with the gearbox controller;
the battery is electrically connected with the gearbox controller;
and the vehicle control unit, the gearbox controller and the motor controller are all connected with a CAN bus.
Furthermore, an electromagnetic air valve is arranged between the gearbox controller and the power takeoff, the gearbox controller controls the input and stop of high-pressure air at a high-pressure air input port of the power takeoff by controlling the opening and closing of the electromagnetic air valve, and further controls the engagement and separation of an output shaft of the power takeoff;
furthermore, a high-pressure air inlet of the power takeoff is connected with a high-pressure connecting air pipe, and an electromagnetic air valve is arranged at the port of the high-pressure connecting air pipe;
the transmission controller controls the engagement and the disengagement of the output shaft of the power takeoff and a transmission gear of the transmission by controlling the electromagnetic air valve; the concrete expression is as follows:
the gearbox controller controls the electromagnetic air valve to further control the high-pressure connecting air pipe to convey high-pressure air to the power takeoff; when high-pressure air is input, the gear meshing deflector rod is pushed to enable the output shaft of the power takeoff to be meshed with the gear of the gearbox, and when the high-pressure air stops being input, the reverse-push spring pushes the gear meshing deflector rod to enable the output shaft of the power takeoff to be separated from the gear of the gearbox.
Further, the input switch includes: a speed-regulating combined switch and a power takeoff button switch;
the speed-regulating combined switch is a cruise control switch on the vehicle;
the power takeoff button switch is a button switch arranged in a cab;
further, the sensor switch is a position detection switch arranged at one end of the output shaft of the power takeoff, and outputs a high level signal or a low level signal according to different meshing states of the output shaft of the power takeoff.
Compared with the prior art, the beneficial effects of the utility model are that: the optimized design of the power take-off strategy of the fuel cell hydrogen energy automobile 2-gear transmission motor assembly is realized, the cost can be effectively reduced, and the structure is simple, and the convenience, the safety and the reliability are high.
Drawings
Fig. 1 is a system structure diagram of the power takeoff control system of the fuel cell hydrogen energy special vehicle.
FIG. 2 is a power take-off execution flow chart of the power take-off control system of the fuel cell hydrogen energy special vehicle of the present invention;
FIG. 3 is a schematic diagram of gear judgment and power takeoff control mode of the power takeoff control system of the fuel cell hydrogen energy special vehicle
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a system structure diagram of a power takeoff control system of a fuel cell hydrogen energy special vehicle according to the present invention.
A power takeoff control system of a fuel cell hydrogen energy special vehicle mainly comprises a vehicle control unit 1, an input switch 2, a sensor switch 3, an execution device 4, a high-pressure connecting air pipe 5, a power takeoff 6 and a battery 7;
the execution device 4 includes: the device comprises a motor, a motor controller, a gearbox and a gearbox controller;
the motor is electrically connected with a motor controller, and the mechanical part of the power takeoff 6 is rigidly connected with a gear of a gearbox through a gear;
the vehicle control unit 1 is electrically connected with the power takeoff 6 through the sensor switch 3;
the whole vehicle controller 1 and the input switch 2 are respectively electrically connected with a gearbox controller;
the battery 7 is electrically connected with the gearbox controller;
and the vehicle control unit 1, the gearbox controller and the motor controller are all connected with a CAN bus.
An electromagnetic air valve is arranged between the gearbox controller and the power takeoff 6, the gearbox controller controls the input and stop of high-pressure air at a high-pressure air input port of the power takeoff 6 by controlling the opening and closing of the electromagnetic air valve, and further controls the engagement and separation of an output shaft of the power takeoff;
a high-pressure connecting air pipe 5 is connected to a high-pressure air inlet of the power takeoff 6, and an electromagnetic air valve is arranged at the port of the high-pressure connecting air pipe 5;
the transmission controller controls the engagement and the disengagement of the output shaft of the power takeoff 6 and a transmission gear by controlling the electromagnetic air valve; the concrete expression is as follows:
the electromagnetic air valve is controlled to further control the high-pressure connecting air pipe 5 to convey high-pressure air to the power takeoff 6; when high-pressure air is input, the gear meshing deflector rod is pushed to enable the output shaft of the power takeoff 6 to be meshed with a gear of a gearbox, and when the high-pressure air stops being input, the reverse-push spring pushes the gear meshing deflector rod to enable the output shaft of the power takeoff 6 to be separated from the gear of the gearbox.
The input switch 2 includes: a speed-regulating combined switch and a power takeoff button switch;
the speed-regulating combined switch is used for multiplexing a cruise control switch on the vehicle;
the power takeoff button switch is a button switch arranged in a cab;
the sensor switch 3 is a position detection switch arranged at one end of an output shaft of the power takeoff 6, and outputs a high level signal or a low level signal according to different meshing states of the output shaft of the power takeoff 6.
Referring to fig. 2, fig. 2 is a flow chart illustrating the power takeoff execution of the power takeoff control system of the fuel cell hydrogen energy special vehicle according to the present invention.
The force taking execution flow comprises the following steps: when a power takeoff button switch is pressed down, the vehicle controller 1 judges whether a power takeoff condition is met or not, if not, the power takeoff operation is not executed, if yes, a required rotating speed is generated, a gearbox controller drives an electromagnetic air valve to control engagement and separation of a power takeoff 6, the gearbox controller further judges the engagement state of the power takeoff 6, if the power takeoff 6 is engaged or separated, the gearbox controller further judges whether engagement or separation is overtime or not, if engagement or separation is overtime, the gearbox stops driving the electromagnetic air valve and uploads fault information to the vehicle controller 1, otherwise, if the gearbox controller is in a normal engagement state, the gearbox controller judges whether parking power takeoff is allowed or not, and if the parking power takeoff mode and the control requirement are sent to a CAN bus by the gearbox controller; otherwise, the transmission controller judges and continues to judge, and the operation is repeated.
Referring to fig. 3, fig. 3 is a schematic diagram of gear determination and power takeoff control of a power takeoff control system of a fuel cell hydrogen energy special vehicle according to the present invention.
When the vehicle is in the D gear, the rotating speed of the motor reaches a set gear shifting point or a plus button or a minus button is pressed in the process of acceleration or deceleration, and then gear shifting operation is carried out. The power takeoff control system of the fuel cell hydrogen energy special vehicle firstly controls the torque of the motor to be reduced to 0, then the N gears are engaged, the speed is regulated by controlling the motor, the rotating speed of an input shaft and the rotating speed of an output shaft of a target gear are enabled to be consistent, when the rotating speeds are consistent, the gear shifting mechanism acts to engage the target gear, the motor is controlled to recover the torque after the gear is in place, and the current control torque of a vehicle control unit 1(VCU) is responded. The power take-off switch is input to a Vehicle Control Unit (VCU) 1 by a Transmission Control Unit (TCU), after the power take-off button switch is pressed, an output shaft of the power take-off 6 is meshed, if the power take-off is needed, a driver can select a D gear, and the vehicle and the output shaft of the power take-off 6 are controlled to output rotating speed by an accelerator pedal. When the target gear is the 1 gear, executing functional power take-off; when the target gear is the 2 nd gear, the economical power take-off is executed. In order to protect the power take-off 6 and its load, the vehicle is speed limited to ensure that the output speed of the power take-off 6 is not higher than 1800 RPM. After the output shaft of the power takeoff 6 is meshed, the vehicle can enter a parking power takeoff mode after the hand brake is pulled up at the N gear. The driver can regulate the speed of the output shaft of the power takeoff 6 through a cruise handle or an operation panel of an intelligent upper-mounted controller.
The utility model relates to a fuel cell hydrogen energy special-purpose vehicle power takeoff control system has realized the optimal design of fuel cell hydrogen energy car 2 shelves gearbox motor assembly power takeoff tactics, can effective reduce cost, and simple structure, and convenience, security and reliability are high.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (5)
1. The utility model provides a power takeoff control system of fuel cell hydrogen energy special-purpose vehicle which characterized in that: the system mainly comprises a vehicle control unit (1), an input switch (2), a sensor switch (3), an execution device (4), a high-pressure connecting air pipe (5), a power takeoff (6) and a battery (7);
the execution means (4) comprises: the device comprises a motor, a motor controller, a gearbox and a gearbox controller;
the motor is electrically connected with the motor controller, and the mechanical part of the power takeoff (6) is rigidly connected with a gear of the gearbox through a gear;
the vehicle control unit (1) is electrically connected with the power takeoff (6) through the sensor switch (3);
the whole vehicle controller (1) and the input switch (2) are respectively electrically connected with the gearbox controller;
the battery (7) is electrically connected with the gearbox controller;
and the vehicle control unit (1), the gearbox controller and the motor controller are all connected with a CAN bus.
2. The power takeoff control system of the fuel cell hydrogen energy special vehicle as claimed in claim 1, wherein:
an electromagnetic air valve is arranged between the gearbox controller and the power takeoff (6), the gearbox controller controls the input and stop of high-pressure air at a high-pressure air input port of the power takeoff (6) by controlling the opening and closing of the electromagnetic air valve, and then the engagement and separation of an output shaft of the power takeoff (6) are controlled.
3. The power takeoff control system of the fuel cell hydrogen energy special vehicle as claimed in claim 2, wherein:
a high-pressure connecting air pipe (5) is connected to a high-pressure air inlet of the power takeoff (6), and an electromagnetic air valve is arranged at the port of the high-pressure connecting air pipe (5);
the transmission controller controls the engagement and the disengagement of the output shaft of the power takeoff (6) and a transmission gear by controlling the electromagnetic air valve; the concrete expression is as follows:
the electromagnetic air valve is controlled to further control the high-pressure connecting air pipe (5) to convey high-pressure air to the power takeoff (6); when high-pressure air is input, the gear meshing deflector rod is pushed to enable the output shaft of the power takeoff (6) to be meshed with the gear of the gearbox, and when the high-pressure air stops being input, the reverse-push spring pushes the gear meshing deflector rod to enable the output shaft of the power takeoff (6) to be separated from the gear of the gearbox.
4. The power takeoff control system of the fuel cell hydrogen energy special vehicle as claimed in claim 1, wherein:
the input switch (2) comprises: a speed-regulating combined switch and a power takeoff button switch;
the speed-regulating combined switch is used for multiplexing a cruise control switch on the vehicle;
the power takeoff button switch is a button switch arranged in the cab.
5. The power takeoff control system of the fuel cell hydrogen energy special vehicle as claimed in claim 1, wherein:
the sensor switch (3) is a position detection switch arranged at one end of an output shaft of the power takeoff (6), and outputs a high level signal or a low level signal according to different meshing states of the output shaft of the power takeoff (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022100900.7U CN214001342U (en) | 2020-09-22 | 2020-09-22 | Power takeoff control system of fuel cell hydrogen energy special vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022100900.7U CN214001342U (en) | 2020-09-22 | 2020-09-22 | Power takeoff control system of fuel cell hydrogen energy special vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214001342U true CN214001342U (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022100900.7U Active CN214001342U (en) | 2020-09-22 | 2020-09-22 | Power takeoff control system of fuel cell hydrogen energy special vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN214001342U (en) |
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- 2020-09-22 CN CN202022100900.7U patent/CN214001342U/en active Active
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