CN115246437B - Steering hydraulic control system and method and vehicle - Google Patents
Steering hydraulic control system and method and vehicle Download PDFInfo
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- CN115246437B CN115246437B CN202210813589.1A CN202210813589A CN115246437B CN 115246437 B CN115246437 B CN 115246437B CN 202210813589 A CN202210813589 A CN 202210813589A CN 115246437 B CN115246437 B CN 115246437B
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- steering hydraulic
- hydraulic oil
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 154
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 239000003921 oil Substances 0.000 claims description 41
- 230000005611 electricity Effects 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 6
- 238000004590 computer program Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/30—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means
Abstract
The invention relates to the technical field of hydraulic control, and provides a steering hydraulic control system and method and a vehicle, wherein the steering hydraulic control system comprises: a steering hydraulic oil tank for supplying hydraulic oil to the steering mechanism; the steering hydraulic pump is connected with the steering hydraulic oil tank; the energy driving device is in power coupling connection with the steering hydraulic pump; the pneumatic driving device is connected with the steering hydraulic oil tank; the controller is electrically connected with the energy driving device and the air pressure driving device, and is used for controlling the energy driving device to drive the steering hydraulic pump and sending the hydraulic pump in the steering hydraulic oil tank to the steering mechanism under the condition that the energy driving device is in a normal state; and under the condition that the energy driving device is in a fault state, controlling the pneumatic driving device to convey hydraulic oil in the steering hydraulic oil tank to the steering mechanism. The steering hydraulic control system and method and the vehicle can improve the emergency response capability of the steering hydraulic control system and improve the safety coefficient.
Description
Technical Field
The invention relates to the technical field of hydraulic control, in particular to a steering hydraulic control system and method and a vehicle.
Background
When the vehicle runs on a road, sometimes the vehicle needs to be steered, the steering mechanism of the vehicle needs to be driven by power, the steering mechanism of the vehicle can be driven by hydraulic transmission, the steering control of the vehicle is realized, the hydraulic transmission is used for the steering control of the vehicle, the feedback is very direct, and the steering performance of the vehicle can be improved.
The existing steering hydraulic control system mainly adopts an engine or a motor to drive a hydraulic pump to pump hydraulic oil for a steering mechanism, so that the oil supply mode is single, manual emergency steering is needed when the engine or the motor fails, the emergency response capability is weak, and the safety coefficient is low.
Disclosure of Invention
The invention provides a steering hydraulic control system and method and a vehicle, which are used for solving the defects that in the prior art, an oil supply mode is single, manual emergency steering is required when an engine or a motor fails, emergency response capability is weak, and safety coefficient is low, and improving the emergency response capability of the steering hydraulic control system and the safety coefficient.
The present invention provides a steering hydraulic control system including: a steering hydraulic oil tank for supplying hydraulic oil to the steering mechanism; the steering hydraulic pump is connected with the steering hydraulic oil tank; the energy driving device is in power coupling connection with the steering hydraulic pump; the pneumatic driving device is connected with the steering hydraulic oil tank; the energy driving device and the air pressure driving device are electrically connected with the controller, and the controller is used for controlling the energy driving device to drive the steering hydraulic pump and sending the hydraulic pump in the steering hydraulic oil tank to the steering mechanism under the condition that the energy driving device is in a normal state; and under the condition that the energy driving device is in a fault state, controlling the pneumatic driving device to convey the hydraulic oil in the steering hydraulic oil tank to the steering mechanism.
According to the steering hydraulic control system provided by the invention, the pneumatic driving device comprises: the power output end of the pneumatic motor is in power coupling connection with the power input end of the steering hydraulic pump, and the oil inlet of the steering hydraulic pump is communicated with the oil outlet of the steering hydraulic oil tank.
According to the steering hydraulic control system provided by the invention, the pneumatic driving device comprises: the oil inlet of the pneumatic booster hydraulic pump is communicated with the oil outlet of the steering hydraulic oil tank, and the oil outlet of the pneumatic booster hydraulic pump is used for conveying hydraulic oil to the steering mechanism.
According to the steering hydraulic control system provided by the invention, the pneumatic driving device comprises: the gas storage cylinder is used for storing high-pressure gas; the electric proportional control valve is connected with the output end of the air cylinder, the electric proportional control valve is electrically connected with the controller, and the controller is used for controlling the electric proportional control valve to be opened under the condition that the energy driving device is in a fault state.
According to the steering hydraulic control system provided by the invention, the pneumatic driving device further comprises: the mechanical valve is connected with the output end of the air storage cylinder and is used for a user to manually control the output air flow of the air storage cylinder.
According to the steering hydraulic control system provided by the invention, the pneumatic driving device further comprises: an air compressor; the input end of the dryer is communicated with the output end of the air compressor; the input end of the protection valve is communicated with the output end of the dryer, and the output end of the protection valve is communicated with the input end of the air cylinder.
According to the steering hydraulic control system provided by the invention, the energy driving device comprises: the power output shaft of the motor is in power coupling connection with the power input end of the steering hydraulic pump, and the oil inlet of the steering hydraulic pump is communicated with the oil outlet of the steering hydraulic oil tank.
According to the steering hydraulic control system provided by the invention, the energy driving device comprises: the power output shaft of the engine is in power coupling connection with the power input end of the steering hydraulic pump, and the oil inlet of the steering hydraulic pump is communicated with the oil outlet of the steering hydraulic oil tank.
The invention also provides a steering hydraulic control method, which comprises the following steps: acquiring the working state and the vehicle speed of an energy driving device; when the working state is a fault state and the vehicle speed is greater than a vehicle speed threshold value, controlling the pneumatic driving device to convey hydraulic oil in the steering hydraulic oil tank to the steering mechanism and outputting an alarm signal; the energy driving device is connected with the steering hydraulic oil tank through a steering hydraulic pump, the pneumatic driving device is connected with the steering hydraulic oil tank, and the steering hydraulic oil tank is used for supplying hydraulic oil to the steering mechanism.
The present invention also provides a vehicle including: a steering mechanism; the steering hydraulic control system according to any one of the above, configured to supply hydraulic oil to the steering mechanism.
According to the steering hydraulic control system and method and the vehicle, the pneumatic driving device is arranged to supplement the energy driving device, when the energy driving device fails, the pneumatic driving device can be started, hydraulic oil in the steering hydraulic oil tank is driven in an emergency mode through the pneumatic driving device, and hydraulic oil is provided for the steering mechanism, so that the emergency response capability of the steering hydraulic control system can be improved, and the safety coefficient is improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a steering hydraulic control system provided by the present invention;
FIG. 2 is a schematic flow chart of a steering hydraulic control method provided by the invention;
FIG. 3 is a flow chart diagram of a steering hydraulic control method provided by the present invention;
FIG. 4 is a schematic view of the steering hydraulic control apparatus according to the present invention;
fig. 5 is a schematic structural diagram of an electronic device provided by the present invention.
Reference numerals:
10: steering hydraulic oil tank; 20: a steering hydraulic pump; 31: a motor; 41: a pneumatic motor; 42: an air cylinder; 43: an electrical proportional control valve; 44: a mechanical valve; 45: an air compressor; 46: a dryer; 47: a protection valve; 48: an overflow valve; 49: a one-way valve; 50: a controller; 60: a steering mechanism; 70: a muffler.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The steering hydraulic control system and method of the invention and the vehicle are described below with reference to fig. 1 to 5.
As shown in fig. 1, the present invention provides a steering hydraulic control system for supplying hydraulic oil to a steering mechanism 60 of a vehicle, capable of powering the steering mechanism 60 by the oil pressure of the hydraulic oil, thereby driving the vehicle to steer.
The steering hydraulic control system includes: a steering hydraulic oil tank 10, a steering hydraulic pump 20, an energy driving device, a pneumatic driving device, and a controller 50.
The steering hydraulic oil tank 10 is used to supply hydraulic oil to the steering mechanism 60.
The steering hydraulic oil tank 10 stores hydraulic oil therein, and the hydraulic oil in the steering hydraulic oil tank 10 can be used to be supplied to the steering mechanism 60.
The steering hydraulic pump 20 is connected to the steering hydraulic oil tank 10.
The steering hydraulic pump 20 is used for pumping hydraulic oil, that is, can suck out the hydraulic oil in the steering hydraulic oil tank 10 and pump the hydraulic oil to other components needing the hydraulic oil.
The energy source driving device is in power coupling connection with the steering hydraulic pump 20.
The energy driving device may convert other energy into kinetic energy, and may include an engine (not shown) or a motor 31, which converts the internal energy into kinetic energy when fuel is combusted when the energy driving device includes the engine, thereby outputting power through a power output shaft; when the energy driving device includes the motor 31, the motor 31 converts electric energy into kinetic energy when energized, thereby outputting power through the power output shaft.
The power output end of the energy driving device can be in power coupling connection with the power input end of the steering hydraulic pump 20, when the energy driving device works, the energy driving device can provide power for the steering hydraulic pump 20 to drive the steering hydraulic pump 20 to work, and the steering hydraulic pump 20 can pump hydraulic oil in a steering oil tank to the steering mechanism 60.
The pneumatic drive device is connected to the steering hydraulic oil tank 10.
The pneumatic driving device is not driven by energy, but is driven by the air pressure generated in the release process of the stored high-pressure air, the pneumatic driving device can be directly connected with the steering hydraulic oil tank 10, hydraulic oil in the steering hydraulic oil tank 10 is pushed out by releasing the air pressure, so as to provide hydraulic oil for the steering mechanism 60, of course, the pneumatic driving device can also be not directly connected with the steering hydraulic oil tank 10, can be connected with the steering hydraulic oil tank 10 through the steering hydraulic pump 20, the pneumatic driving device drives the steering hydraulic pump 20 to work, so that the hydraulic oil in the steering hydraulic oil tank 10 is pumped out and is conveyed to the steering mechanism 60, the specific connection mode of the pneumatic driving device and the steering hydraulic oil tank 10 is not limited, and the connection mode of the pneumatic driving device and the steering hydraulic oil tank 10 can be determined by a person skilled in the art according to the specific type of the pneumatic driving device.
The energy driving device and the air pressure driving device are electrically connected with the controller 50, and the controller 50 is arranged to control the energy driving device to drive the steering hydraulic pump 20 and send the hydraulic pump in the steering hydraulic oil tank 10 to the steering mechanism 60 under the condition that the energy driving device is in a normal state; in the case where the energy driving device is in a failure state, the pneumatic driving device is controlled to deliver the hydraulic oil in the steering hydraulic oil tank 10 to the steering mechanism 60.
It may be understood that the controller 50 is a logic control center of the steering hydraulic control system, and the controller 50 may preset a computer program, and control the steering hydraulic control system through the computer program, or may perform logic operation in a hardware manner such as a logic circuit, so as to control the steering hydraulic control system.
The pneumatic driving device and the energy driving device can be electrically connected with the controller 50, the pneumatic driving device can be used as a supplement of the energy driving device, when the energy driving device is in a normal state, the controller 50 controls the energy driving device to start at the moment, and the energy driving device can convert energy into kinetic energy, so that a hydraulic oil in a hydraulic oil tank is pumped to the steering mechanism 60, and hydraulic oil is provided for the steering mechanism 60; when the energy driving device is in a fault state, the controller 50 controls the energy driving device to be turned off, the controller 50 controls the air pressure driving device to be started, and the air pressure driving device can drive hydraulic oil in the hydraulic oil tank to be delivered to the steering mechanism 60 by releasing high-pressure gas, so that the hydraulic oil is provided for the steering mechanism 60.
It should be noted that, when the energy driving device is driven, whether the energy driving device fails or not may be determined by detecting the operation state information of the steering hydraulic pump 20, and the operation state information may include: hydraulic pressure, hydraulic flow, supply voltage, motor 31 current, motor 31 rotational speed, controller 50 temperature, fault level, or fault code.
According to the steering hydraulic control system provided by the invention, the pneumatic driving device is arranged to supplement the energy driving device, when the energy driving device fails, the pneumatic driving device can be started, the hydraulic oil in the steering hydraulic oil tank 10 is driven in an emergency manner through the pneumatic driving device, and the hydraulic oil is provided for the steering mechanism, so that the emergency response capability of the steering hydraulic control system can be improved, and the safety coefficient is improved.
As shown in fig. 1, in some embodiments, the pneumatic drive device includes: a pneumatic motor 41.
The power output end of the pneumatic motor 41 is in power coupling connection with the power input end of the steering hydraulic pump 20, and the oil inlet of the steering hydraulic pump 20 is communicated with the oil outlet of the steering hydraulic oil tank 10.
It will be appreciated that the pneumatic motor 41 can output power at the power output end under the pushing of high-pressure gas to drive the steering hydraulic pump 20 to rotate, and the oil inlet of the steering hydraulic pump 20 can pump hydraulic oil from the steering hydraulic oil tank 10 so as to be delivered to the steering mechanism.
It should be noted that the steering hydraulic pump 20 to which the air motor 41 is connected may be the same as the steering hydraulic pump 20 to which the energy driving device is connected, that is, the same steering hydraulic pump 20 may be shared with the energy driving device when the air driving device includes the air motor 41.
In some embodiments, the pneumatic drive device comprises: pneumatic booster hydraulic pump.
The oil inlet of the pneumatic booster hydraulic pump is communicated with the oil outlet of the steering hydraulic oil tank 10, and the oil outlet of the pneumatic booster hydraulic pump is used for conveying hydraulic oil to the steering mechanism.
It will be appreciated that the pneumatic driving device may further include a pneumatic booster hydraulic pump, where the pneumatic booster hydraulic pump may directly convert the gas pressure into the liquid pressure, the pneumatic booster hydraulic pump may replace the combination of the two elements of the pneumatic motor and the steering hydraulic pump, the hydraulic oil may be directly pumped by using the air pressure, and the oil inlet of the pneumatic booster hydraulic pump may be directly communicated with the oil outlet of the steering hydraulic oil tank 10, so that the hydraulic oil may be directly pumped from the steering hydraulic oil tank 10 by the pneumatic booster hydraulic pump to provide the hydraulic oil to the steering mechanism.
As shown in fig. 1, in some embodiments, the pneumatic drive device includes: a gas reservoir 42 and an electrical proportional control valve 43.
The gas cylinder 42 stores high-pressure gas therein.
The electric proportional control valve 43 is connected to the output end of the air reservoir 42, the electric proportional control valve 43 is electrically connected to the controller 50, and the controller 50 is configured to control the electric proportional control valve 43 to be opened when the energy driving device is in a failure state.
It can be understood that the controller 50 can directly send an electrical signal to the electric proportional control valve 43 to drive the electric proportional control valve 43 to open and close, where when the controller 50 monitors that the energy driving device is in a fault state, the electric proportional control valve 43 is controlled to open, and at this time, the state of hydraulic oil driven by the energy driving device can be automatically converted into the state of hydraulic oil driven by the air pressure driving device, so as to implement automatic emergency conversion when the energy driving device fails.
As shown in fig. 1, in some embodiments, the pneumatic drive device further includes: a mechanical valve 44.
A mechanical valve 44 is connected to the output of the air reservoir 42, the mechanical valve 44 being used for manual control of the output air flow of the air reservoir 42 by a user.
It will be appreciated that the output of the air reservoir 42 may also be connected to a mechanical valve 44, and that the mechanical valve 44 may be a two-position, two-way reversing valve, which may be mounted near the instrument panel of the cab. The user can manually control the output air flow of the air reservoir 42 through the mechanical valve 44, so that the user can manually control the output air flow of the air reservoir 42 when the controller 50 automatically controls the air pressure driving device to fail, and the safety performance of the steering hydraulic control system can be further improved.
As shown in fig. 1, in some embodiments, the pneumatic drive device further includes: an air compressor 45, a dryer 46 and a protection valve 47.
The input of the dryer 46 communicates with the output of the air compressor 45.
An input of the protection valve 47 communicates with an output of the dryer 46, and an output of the protection valve 47 communicates with an input of the air receiver 42.
It will be appreciated that the pneumatic drive means may comprise: the air compressor 45, the dryer 46, the protection valve 47, and the plurality of air cylinders 42 may further include: a muffler 70. The pneumatic driving device may be a common component with the whole vehicle air supply system of the vehicle, and the air compressor 45 may be a mechanical air compressor driven by an engine of the fuel vehicle or an electric air compressor of the electric vehicle, and the electric air compressor is integrated with the motor 31 for driving the mechanical air compressor.
The air pressure driving device may further include: pressure limiting valve and air pressure sensor. The controller 50 may determine the operation state of the energy driving device by receiving the operation state information of the steering hydraulic pump 20 through the CAN signal or directly receiving the operation state information of the steering hydraulic pump 20. In the event of an unpredictable emergency, the driver can manually operate the mechanical valve 44, manually activate the pneumatic drive, and the high pressure gas from the reservoir 42 to the pneumatic booster hydraulic pump or motor 41. The air outlets of the plurality of air cylinders 42 of the vehicle may be connected in parallel. The steering hydraulic control system may have an automatic control mode and a manual control mode. The manual control mode may take precedence over the automatic control mode.
As shown in fig. 1, in some embodiments, the energy driving apparatus includes: a motor 31.
The power output shaft of the motor 31 is in power coupling connection with the power input end of the steering hydraulic pump 20, and the oil inlet of the steering hydraulic pump 20 is communicated with the oil outlet of the steering hydraulic oil tank 10.
It will be appreciated that the energy driving device may include a motor 31, where the motor 31 is powered, and the power output shaft may rotate, so as to drive the power input end of the steering hydraulic pump 20, and the oil inlet of the steering hydraulic pump 20 may pump hydraulic oil from the oil outlet of the steering hydraulic oil tank 10.
In some embodiments, the energy driving device includes: an engine.
The power output shaft of the engine is in power coupling connection with the power input end of the steering hydraulic pump 20, and the oil inlet of the steering hydraulic pump 20 is communicated with the oil outlet of the steering hydraulic oil tank 10.
It will be appreciated that the energy driving device may further include an engine, where the engine may perform work under the condition of fuel combustion, and the power output shaft thereof may rotate, so as to drive the power input end of the steering hydraulic pump 20, and the oil inlet of the steering hydraulic pump 20 may pump hydraulic oil from the oil outlet of the steering hydraulic oil tank 10.
As shown in fig. 1, in some embodiments, a check valve 49 may be connected to the outlet of the steering hydraulic pump 20.
As shown in fig. 1, in some embodiments, the steering hydraulic pump 20 is integrated with a relief valve 48, the relief valve 48 limiting pressure below the hydraulic operating pressure of the steering mechanism 60.
In some embodiments, the controller 50 automatically turns on the pneumatic drive device, requiring that the following two conditions be satisfied simultaneously: firstly, the energy driving device has serious faults, so that the steering mechanism 60 cannot be normally provided with high-pressure hydraulic oil, and the steering is heavy; and secondly, the vehicle speed is greater than a vehicle speed threshold, and the vehicle speed threshold can be 5Km/h.
As shown in fig. 2, the present invention also provides a steering hydraulic pressure control method including: steps 210 to 220 are as follows.
Step 210, acquiring the working state of the energy driving device and the vehicle speed.
The energy driving device is connected with a steering hydraulic oil tank through a steering hydraulic pump, the pneumatic driving device is connected with the steering hydraulic oil tank, and the steering hydraulic oil tank is used for supplying hydraulic oil to the steering mechanism.
It will be appreciated that the steering hydraulic tank has hydraulic oil stored therein, which can be used to provide the steering mechanism. The steering hydraulic pump is used for pumping hydraulic oil, namely can suck out the hydraulic oil in the steering hydraulic oil tank and pump the hydraulic oil to other components needing the hydraulic oil. The energy driving device can convert other energy into kinetic energy, the energy driving device can comprise an engine or a motor, and when the energy driving device comprises the engine, the engine converts the internal energy into the kinetic energy when fuel oil is combusted, so that power is output outwards through a power output shaft; when the energy source driving device comprises a motor, the motor converts electric energy into kinetic energy when energized, so that power is output outwards through the power output shaft. The power output end of the energy driving device can be in power coupling connection with the power input end of the steering hydraulic pump, when the energy driving device works, the energy driving device can provide power for the steering hydraulic pump to drive the steering hydraulic pump to work, and the steering hydraulic pump can pump hydraulic oil in the steering oil tank to the steering mechanism.
The energy driving device can convert other energy into kinetic energy, the energy driving device can comprise an engine or a motor, and when the energy driving device comprises the engine, the engine converts the internal energy into the kinetic energy when fuel oil is combusted, so that power is output outwards through a power output shaft; when the energy source driving device comprises a motor, the motor converts electric energy into kinetic energy when energized, so that power is output outwards through the power output shaft.
The power output end of the energy driving device can be in power coupling connection with the power input end of the steering hydraulic pump, when the energy driving device works, the energy driving device can provide power for the steering hydraulic pump to drive the steering hydraulic pump to work, and the steering hydraulic pump can pump hydraulic oil in the steering oil tank to the steering mechanism.
The working state of the energy driving device can be obtained, when the energy driving device drives, the working state of the energy driving device can be judged by detecting the working state information of the steering hydraulic pump, namely, whether the energy driving device fails or not, and the working state information can comprise: hydraulic pressure, hydraulic flow, supply voltage, motor current, motor speed, controller temperature, fault level, or fault code.
The controller can also acquire the vehicle speed, i.e. the driving speed of the vehicle.
And 220, controlling the pneumatic driving device to convey the hydraulic oil in the steering hydraulic oil tank to the steering mechanism and outputting an alarm signal under the condition that the working state is a fault state and the vehicle speed is greater than the vehicle speed threshold value.
It is understood that the vehicle speed threshold may be 5Km/h. When the energy driving device is in a normal state, the controller controls the energy driving device to start, and the energy driving device can convert energy into kinetic energy, so that hydraulic oil in the hydraulic oil tank is pumped to the steering mechanism, and hydraulic oil is provided for the steering mechanism; when the energy driving device is in a fault state and the vehicle speed is greater than the vehicle speed threshold value, the controller controls the energy driving device to be closed at the moment, the controller controls the pneumatic driving device to be started, and the pneumatic driving device can drive hydraulic oil in the hydraulic oil tank to be transmitted to the steering mechanism through releasing high-pressure gas so as to provide hydraulic oil for the steering mechanism.
As shown in fig. 3, in some embodiments, the controller may first obtain the working state of the energy driving device and the vehicle speed, when the vehicle speed is greater than the vehicle speed threshold, determine whether the working state of the energy driving device is a fault state, if so, determine whether the air compressor can normally operate, if the air compressor cannot normally start, send an alarm signal to indicate that the pneumatic emergency steering cannot continuously operate, and determine whether the electric proportional control valve can be controlled at this time, if the electric proportional control valve cannot be controlled, send an alarm signal to remind the driver to open the mechanical valve, and if the electric proportional control valve can be controlled, control the electric proportional control valve to open at this time, and detect that the air pressure driving device stops operating after the working time is longer than the first duration, which may be 30 seconds.
If the air compressor can normally pneumatic, judging whether the controller can control the electric proportional control valve at the moment, if the controller cannot control the electric proportional control valve, sending an alarm signal to remind a driver to manually open the mechanical valve, and if the controller can control the electric proportional control valve, sending the alarm signal, and stopping working after detecting that the air pressure driving device is longer than a second time length when the air pressure driving device is in working, wherein the second time length can be 30 minutes.
The present invention also provides a vehicle including: a steering mechanism and a steering hydraulic control system as any one of the above, the steering hydraulic control system being configured to supply hydraulic oil to the steering mechanism.
The steering hydraulic control apparatus provided by the present invention will be described below, and the steering hydraulic control apparatus described below and the steering hydraulic control method described above may be referred to in correspondence with each other.
As shown in fig. 4, the present invention also provides a steering hydraulic control apparatus that includes an acquisition module 410 and a control module 420.
The acquiring module 410 is configured to acquire an operating state of the energy driving device and a vehicle speed.
And the control module 420 is used for controlling the pneumatic driving device to convey the hydraulic oil in the steering hydraulic oil tank to the steering mechanism and outputting an alarm signal under the condition that the working state is a fault state and the vehicle speed is greater than the vehicle speed threshold value.
The energy driving device is connected with the steering hydraulic oil tank through a steering hydraulic pump, the pneumatic driving device is connected with the steering hydraulic oil tank, and the steering hydraulic oil tank is used for supplying hydraulic oil to the steering mechanism.
Fig. 5 illustrates a physical schematic diagram of an electronic device, as shown in fig. 5, which may include: processor 510, communication interface (Communications Interface) 520, memory 530, and communication bus 540, wherein processor 510, communication interface 520, memory 530 complete communication with each other through communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform a steering hydraulic control method comprising: acquiring the working state and the vehicle speed of an energy driving device; when the working state is a fault state and the vehicle speed is greater than the vehicle speed threshold value, controlling the pneumatic driving device to convey hydraulic oil in the steering hydraulic oil tank to the steering mechanism and outputting an alarm signal; the energy driving device is connected with the steering hydraulic oil tank through the steering hydraulic pump, the pneumatic driving device is connected with the steering hydraulic oil tank, and the steering hydraulic oil tank is used for supplying hydraulic oil to the steering mechanism.
Further, the logic instructions in the memory 530 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of executing the steering hydraulic control method provided by the above methods, the method comprising: acquiring the working state and the vehicle speed of an energy driving device; when the working state is a fault state and the vehicle speed is greater than the vehicle speed threshold value, controlling the pneumatic driving device to convey hydraulic oil in the steering hydraulic oil tank to the steering mechanism and outputting an alarm signal; the energy driving device is connected with the steering hydraulic oil tank through the steering hydraulic pump, the pneumatic driving device is connected with the steering hydraulic oil tank, and the steering hydraulic oil tank is used for supplying hydraulic oil to the steering mechanism.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the steering hydraulic control method provided by the above methods, the method comprising: acquiring the working state and the vehicle speed of an energy driving device; when the working state is a fault state and the vehicle speed is greater than the vehicle speed threshold value, controlling the pneumatic driving device to convey hydraulic oil in the steering hydraulic oil tank to the steering mechanism and outputting an alarm signal; the energy driving device is connected with the steering hydraulic oil tank through the steering hydraulic pump, the pneumatic driving device is connected with the steering hydraulic oil tank, and the steering hydraulic oil tank is used for supplying hydraulic oil to the steering mechanism.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A steering hydraulic control system, characterized by comprising:
a steering hydraulic oil tank for supplying hydraulic oil to the steering mechanism;
the steering hydraulic pump is connected with the steering hydraulic oil tank;
the energy driving device is in power coupling connection with the steering hydraulic pump;
the pneumatic driving device is connected with the steering hydraulic oil tank;
the controller, energy drive arrangement with pneumatic drive arrangement all with the controller electricity is connected, the controller is through detecting the operating condition information of steering hydraulic pump comes judgement whether energy drive arrangement breaks down, the operating condition information includes: hydraulic pressure, hydraulic flow, supply voltage, motor current, motor speed, controller temperature, fault level or fault code; the controller is used for controlling the energy driving device to drive the steering hydraulic pump and sending the hydraulic pump in the steering hydraulic oil tank to the steering mechanism under the condition that the energy driving device is in a normal state; controlling the pneumatic driving device to convey hydraulic oil in the steering hydraulic oil tank to the steering mechanism under the condition that the energy driving device is in a fault state;
the energy driving device is in power coupling connection with one of the steering hydraulic pumps, and the pneumatic driving device comprises a pneumatic motor which is in power coupling connection with the other steering hydraulic pump;
or the number of the steering hydraulic pumps is one, the energy driving device is in power coupling connection with the steering hydraulic pumps, the pneumatic driving device comprises pneumatic booster hydraulic pumps, the oil inlets of the pneumatic booster hydraulic pumps are communicated with the oil outlets of the steering hydraulic oil tanks, and the oil outlets of the pneumatic booster hydraulic pumps are used for conveying hydraulic oil to the steering mechanism.
2. The steering hydraulic control system according to claim 1, characterized in that the pneumatic drive device further includes:
the gas storage cylinder is used for storing high-pressure gas;
the electric proportional control valve is connected with the output end of the air cylinder, the electric proportional control valve is electrically connected with the controller, and the controller is used for controlling the electric proportional control valve to be opened under the condition that the energy driving device is in a fault state.
3. The steering hydraulic control system according to claim 2, characterized in that the pneumatic drive device further includes:
the mechanical valve is connected with the output end of the air storage cylinder and is used for a user to manually control the output air flow of the air storage cylinder.
4. The steering hydraulic control system according to claim 2, characterized in that the pneumatic drive device further includes:
an air compressor;
the input end of the dryer is communicated with the output end of the air compressor;
the input end of the protection valve is communicated with the output end of the dryer, and the output end of the protection valve is communicated with the input end of the air cylinder.
5. The steering hydraulic control system according to claim 1, wherein the energy driving device includes:
the power output shaft of the motor is in power coupling connection with the power input end of the steering hydraulic pump, and the oil inlet of the steering hydraulic pump is communicated with the oil outlet of the steering hydraulic oil tank.
6. The steering hydraulic control system according to claim 1, wherein the energy driving device includes:
the power output shaft of the engine is in power coupling connection with the power input end of the steering hydraulic pump, and the oil inlet of the steering hydraulic pump is communicated with the oil outlet of the steering hydraulic oil tank.
7. A steering hydraulic control method characterized by comprising:
acquiring the working state and the vehicle speed of an energy driving device;
when the working state is a fault state and the vehicle speed is greater than a vehicle speed threshold value, controlling the pneumatic driving device to convey hydraulic oil in the steering hydraulic oil tank to the steering mechanism and outputting an alarm signal;
the energy driving device is connected with the steering hydraulic oil tank through a steering hydraulic pump, the pneumatic driving device is connected with the steering hydraulic oil tank, and the steering hydraulic oil tank is used for supplying hydraulic oil to the steering mechanism;
the energy driving device is in power coupling connection with one of the steering hydraulic pumps, and the pneumatic driving device comprises a pneumatic motor which is in power coupling connection with the other steering hydraulic pump;
or the number of the steering hydraulic pumps is one, the energy driving device is in power coupling connection with the steering hydraulic pumps, the pneumatic driving device comprises pneumatic booster hydraulic pumps, the oil inlets of the pneumatic booster hydraulic pumps are communicated with the oil outlets of the steering hydraulic oil tanks, and the oil outlets of the pneumatic booster hydraulic pumps are used for conveying hydraulic oil to the steering mechanism.
8. A vehicle, characterized by comprising:
a steering mechanism;
the steering hydraulic control system according to any one of claims 1 to 6, configured to supply hydraulic oil to the steering mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210813589.1A CN115246437B (en) | 2022-07-11 | 2022-07-11 | Steering hydraulic control system and method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210813589.1A CN115246437B (en) | 2022-07-11 | 2022-07-11 | Steering hydraulic control system and method and vehicle |
Publications (2)
| Publication Number | Publication Date |
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| CN115246437A CN115246437A (en) | 2022-10-28 |
| CN115246437B true CN115246437B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210813589.1A Active CN115246437B (en) | 2022-07-11 | 2022-07-11 | Steering hydraulic control system and method and vehicle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879444A (en) * | 2014-03-27 | 2014-06-25 | 苏州绿控传动科技有限公司 | Vehicle power-assisted steering system and control method thereof |
| CN104210541A (en) * | 2014-08-26 | 2014-12-17 | 三一汽车起重机械有限公司 | Vehicle emergency steering system and wheeled crane |
| CN205737686U (en) * | 2016-05-17 | 2016-11-30 | 山东汇川汽车部件有限公司 | A kind of motorcar electric hydraulic power-assist steering system |
| CN206749884U (en) * | 2017-03-31 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Vehicular turn force aid system and electro-motive vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150360717A1 (en) * | 2014-06-13 | 2015-12-17 | Hyundai Motor Company | Steering system for vehicle and control method thereof |
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2022
- 2022-07-11 CN CN202210813589.1A patent/CN115246437B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879444A (en) * | 2014-03-27 | 2014-06-25 | 苏州绿控传动科技有限公司 | Vehicle power-assisted steering system and control method thereof |
| CN104210541A (en) * | 2014-08-26 | 2014-12-17 | 三一汽车起重机械有限公司 | Vehicle emergency steering system and wheeled crane |
| CN205737686U (en) * | 2016-05-17 | 2016-11-30 | 山东汇川汽车部件有限公司 | A kind of motorcar electric hydraulic power-assist steering system |
| CN206749884U (en) * | 2017-03-31 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Vehicular turn force aid system and electro-motive vehicle |
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| Publication number | Publication date |
|---|---|
| CN115246437A (en) | 2022-10-28 |
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