CN108099909B - Method, system and device for controlling vehicle starting - Google Patents
Method, system and device for controlling vehicle starting Download PDFInfo
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- CN108099909B CN108099909B CN201711239723.7A CN201711239723A CN108099909B CN 108099909 B CN108099909 B CN 108099909B CN 201711239723 A CN201711239723 A CN 201711239723A CN 108099909 B CN108099909 B CN 108099909B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
- B60W40/076—Slope angle of the road
Abstract
The invention provides a method, a system and equipment for controlling starting of a vehicle. The method comprises the following steps: receiving gradient information sent by a gradient acquisition device; calculating a traction force value required by starting according to the gradient information, the traction handle level and the vehicle load information; sending the traction value to a traction unit so that the traction unit applies traction according to the traction value; and receiving a braking relieving request sent by the traction unit, and sending a braking relieving instruction to a braking unit according to the braking relieving request so that the braking unit applies braking relieving according to the braking relieving instruction. The method can enable the vehicle control system to calculate the traction force value required by vehicle starting based on the gradient information corresponding to the current ramp, reduces the possibility of vehicle sliding or starting impact, and improves user experience.
Description
Technical Field
The present invention relates to vehicle manufacturing technology, and more particularly, to a method, system, and apparatus for controlling vehicle launch.
Background
With the rapid development of vehicle manufacturing technology, more and more vehicle types appear in people's lives, and provide convenience for people's work and life, people can select trip workers at present to have: cars, buses, trains, trams, subways, and the like. In the aspect of user experience, besides the convenience and rapidness brought to people by vehicles, the safety and comfort of the vehicles are also the key points of people to pay attention to. In the running process of the vehicle, the vehicle can inevitably run through various slopes with different slopes, and the starting method of the vehicle on the slopes and the vehicle bring close relation to the safe and comfortable user experience brought by people.
In the prior art, when a vehicle is started, a vehicle control system calculates parameters such as currently required traction force according to a gradient preset in advance.
However, when the slope on which the vehicle travels does not match the predetermined slope, the method for controlling the vehicle start may cause a vehicle-sliding or a start shock, and the user experience is not high.
Disclosure of Invention
The invention provides a method, a system and equipment for controlling vehicle starting, which are used for reducing the possibility of vehicle sliding or starting impact when a vehicle is started and improving user experience.
The invention provides a method for controlling vehicle starting, which comprises the following steps:
receiving gradient information sent by a gradient acquisition device;
calculating a traction force value required by starting according to the gradient information, the traction handle level and the vehicle load information;
sending the traction value to a traction unit so that the traction unit applies traction according to the traction value;
and receiving a braking relieving request sent by the traction unit, and sending a braking relieving instruction to a braking unit according to the braking relieving request so that the braking unit applies braking relieving according to the braking relieving instruction.
Optionally, after sending the traction force value to the traction unit to enable the traction unit to apply traction force according to the traction force value, the method further includes:
and receiving the current traction force value fed back by the traction unit, and displaying the current traction force value to a user through a display interface.
Optionally, after the sending a braking mitigation instruction to a braking unit according to the braking mitigation request so that the braking unit applies braking mitigation according to the braking mitigation instruction, the method further includes:
and receiving the current braking force value fed back by the braking unit, and displaying the current braking force value to a user through a display interface.
Optionally, the sending the traction force value to the traction unit to enable the traction unit to apply traction force according to the traction force value includes:
and sending the traction force value to a traction execution mechanism in the traction unit so that the traction execution mechanism applies traction force according to the traction force value.
Optionally, the sending a brake release instruction to a brake unit according to the brake release request to enable the brake unit to apply brake release according to the brake release instruction includes:
and sending a brake release instruction to a brake execution mechanism in the brake unit according to the brake release request, so that the brake execution mechanism applies brake release according to the brake release instruction.
The invention provides a system for controlling the starting of a vehicle, comprising:
the receiving module is used for receiving the gradient information sent by the gradient acquisition device;
the calculation module is used for calculating a traction force value required by starting according to the gradient information, the traction handle level and the vehicle load information;
the sending module is used for sending the traction force value to a traction unit so that the traction unit applies traction force according to the traction force value;
the receiving module is also used for receiving a braking relieving request sent by the traction unit;
the sending module is further configured to send a brake release instruction to a brake unit according to the brake release request, so that the brake unit applies brake release according to the brake release instruction.
Optionally, the receiving module is further configured to receive the current traction force value fed back by the traction unit after the sending module sends the traction force value to the traction unit, and display the current traction force value to the user through a display interface.
Optionally, the receiving module is further configured to receive the current braking force value fed back by the braking unit after the sending module sends the braking mitigation instruction to the braking unit according to the braking mitigation request, and display the current braking force value to the user through a display interface.
Optionally, the sending module is specifically configured to send the traction force value to a traction execution mechanism in the traction unit, so that the traction execution mechanism applies traction force according to the traction force value.
The invention provides a device for controlling vehicle starting, which comprises the system, a gradient acquisition device, a traction unit and a brake unit.
In the method for controlling vehicle start provided by this embodiment, a vehicle control system receives gradient information sent by a gradient acquisition device, calculates a traction force value required for start according to the gradient information, a traction handle level and vehicle load information, and sends the traction force value to a traction unit, so that the traction unit applies traction force according to the traction force value, then receives a braking alleviation request sent by the traction unit, and sends a braking alleviation instruction to a braking unit according to the braking alleviation request, so that the braking unit applies braking alleviation according to the braking alleviation instruction; the vehicle control system can calculate the traction force value required by vehicle starting based on the gradient information corresponding to the current ramp, the possibility of vehicle sliding or starting impact is reduced, and the user experience is improved.
Drawings
FIG. 1 is a diagram illustrating an application scenario of the method for controlling vehicle start according to the present invention;
FIG. 2 is a flowchart illustrating a first embodiment of a method for controlling vehicle start according to the present invention;
FIG. 3 is a flowchart of a second embodiment of a method for controlling vehicle launch provided by the present invention;
FIG. 4 is a schematic illustration of an intersection of a traction force value and a braking force value during application of traction force;
FIG. 5 is a flowchart of a third embodiment of a method for controlling vehicle launch provided by the present invention;
fig. 6 is a schematic structural diagram of a first embodiment of the system for controlling vehicle starting according to the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terms to which the present invention relates will be explained first:
traction Control Unit (TCU): the function of the traction device is to ensure that the automobile can obtain the best traction under various driving conditions.
A brake unit: it may also be called a braking system, which refers to a series of special devices that make it possible to force the speed of travel of the vehicle to decrease; the braking system mainly comprises four parts, namely an energy supply device, a control device, a transmission device and a brake; the main function of the brake system is to slow down or even stop a running vehicle, to stabilize the speed of a vehicle running downhill or to keep a stopped vehicle immobile, etc.
Gradient acquisition device: the device can measure the slope corresponding to the current passing ramp in real time; optionally, the gradient collecting device may include an inclination sensor, a Digital Analog Converter (a/D for short), a microprocessor, and a vehicle bus; the inclination angle sensor is used for sensing and calculating gradient information corresponding to the current running ramp and converting the gradient information into a voltage signal; the A/D converter is used for converting the voltage signal output by the inclination angle sensor into a digital signal and sending the digital signal to the microprocessor; the microprocessor is used for calculating an inclination angle value according to the received digital signal and sending the inclination angle value to an external node through a vehicle bus; the slope acquisition device related by the invention is any device capable of realizing slope information acquisition, and the specific type of the slope acquisition device is not limited.
A traction handle: one type of traction handle comprises a forward position, a backward position and a grade position, wherein the grade position generally comprises a traction grade 1-4, a zero position, a braking grade 1-7, an emergency braking position and the like; another type of traction handle is a continuously variable speed handle.
During running, the vehicle often runs through various slopes and is inevitably parked on the slopes with different slopes. When restarting, the traction force applied by the traction unit is calculated according to the slope information corresponding to the slope on which the vehicle is currently located. In the prior art, a vehicle control system calculates parameters such as currently required traction force according to a preset gradient, which is a fixed value, in which case, if traction force applied by a traction unit is insufficient to operate a vehicle, a vehicle rolling phenomenon occurs; if the traction force applied by the traction unit is too large, starting impact may be brought, the safety of the vehicle cannot be guaranteed, and the user experience is not high.
Aiming at the problems in the prior art, the invention provides a method for controlling the starting of the vehicle on the basis of introducing the gradient acquisition device, and the method can calculate the traction value required by the traction unit in real time according to the gradient information corresponding to the current ramp acquired by the gradient acquisition device, thereby improving the safety and the user experience degree when the vehicle is started.
Fig. 1 is an application scenario diagram of the method for controlling vehicle start according to the present invention, as shown in fig. 1, a main body for controlling vehicle start may be a vehicle control system, a gradient acquisition device, a traction unit, a brake unit, and a traction handle are all connected to the vehicle control system, and after receiving signals sent by the gradient acquisition device, the traction unit, the brake unit, and the driver traction handle, the vehicle control system sends corresponding commands to various mechanisms according to the signals.
Various embodiments provided subsequently by the present invention can be applied to the above scenario. The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 2 is a flowchart of a first embodiment of a method for controlling vehicle starting according to the present invention, and as shown in fig. 2, the method for controlling vehicle starting according to the present embodiment may include:
and 101, receiving gradient information sent by a gradient acquisition device.
The gradient acquisition device calculates the inclination angle value according to the inclination angle and sends the gradient information containing the inclination angle value to a vehicle control system so that the vehicle control system calculates the traction force value required by vehicle starting according to the gradient information.
Alternatively, the gradient acquisition device may be a gradient acquisition device having a function of determining a gradient type, which may include a steep gradient and a gentle gradient. For example: when the gradient collecting device collects that the current gradient is greater than or equal to 30 degrees, the gradient collecting device determines the current gradient as a steep gradient, and when the gradient collecting device collects that the current gradient is greater than or equal to 30 degrees, the gradient collecting device determines the current gradient as a gentle gradient; the gradient acquisition device can simultaneously send the inclination angle value and the current gradient type as gradient information to a vehicle control system.
In order to ensure the reliability of the data acquired by the gradient acquisition device, the gradient acquisition device may further include a fault feedback module, that is, when the gradient acquisition device fails, the fault state of the gradient acquisition device may be sent to a vehicle control system.
And 102, calculating a traction force value required by starting according to the gradient information, the traction handle level and the vehicle load information.
After the user resets the level of the traction handle through the traction handle, the traction handle sends the set level to a vehicle control system; therefore, the vehicle control system can acquire the current grade position of the traction handle.
After receiving the gradient information sent by the gradient collecting device, the vehicle control system calculates the traction value required by starting the vehicle according to the gradient information, the traction handle level and the vehicle load information. The calculation method of the traction force value is similar to that of the prior art, and is not described herein again.
It should be noted that: when the vehicle stops on a slope, in order to prevent the vehicle from sliding, the vehicle control system needs to calculate a holding braking force value needing to be applied according to slope information and vehicle load information and send the holding braking force value to the braking unit, and the braking unit starts to apply braking force after receiving the holding braking force value so that the vehicle can be kept still on the current slope; in the prior art, the holding braking force value is obtained by calculation according to a fixed gradient value, and when the gradient corresponding to the current slope of the vehicle is smaller than the fixed gradient value, the holding braking force applied by the braking unit is too large, so that the traction unit can completely relieve the holding braking force within a long braking relieving time, and the traction efficiency is low. In the embodiment, the slope information received by the vehicle control system is sent by the slope acquisition device in real time, so that the holding braking force value calculated by the vehicle control system corresponds to the slope value of the slope where the vehicle is currently located, and the brake unit is prevented from applying excessive holding braking force, so that the traction efficiency of the traction unit is improved.
And 103, sending the traction force value to a traction unit so that the traction unit applies traction force according to the traction force value.
And 104, receiving a braking relieving request sent by the traction unit, and sending a braking relieving instruction to a braking unit according to the braking relieving request so that the braking unit applies braking relieving according to the braking relieving instruction.
Optionally, under the condition that the vehicle control system does not receive the braking mitigation request sent by the traction unit, whether the braking mitigation request is sent to the braking unit or not can be judged according to the running speed and the traction torque of the vehicle; such as: when the vehicle control system detects that the vehicle is in a running state or the traction torque is larger than a preset value, a brake release request is sent to the brake unit.
In the method for controlling vehicle start provided by this embodiment, a vehicle control system receives gradient information sent by a gradient acquisition device, calculates a traction force value required for start according to the gradient information, a traction handle level and vehicle load information, and sends the traction force value to a traction unit, so that the traction unit applies traction force according to the traction force value, then receives a braking alleviation request sent by the traction unit, and sends a braking alleviation instruction to a braking unit according to the braking alleviation request, so that the braking unit applies braking alleviation according to the braking alleviation instruction; the vehicle control system can calculate the traction force value required by vehicle starting based on the gradient information corresponding to the current ramp, the possibility of vehicle sliding or starting impact is reduced, and the user experience is improved.
When the vehicle is started on a slope, when the traction unit fails and traction force cannot be normally applied, vehicle sliding may be caused, and hidden danger is brought to personal safety of a user. Therefore, the user can know the current traction force application condition in real time, and the important influence is brought to the improvement of the vehicle running safety.
Fig. 3 is a flowchart of a second embodiment of the method for controlling vehicle starting according to the present invention, and on the basis of the embodiment shown in fig. 2, in order to further improve the safety of vehicle operation, the method for controlling vehicle starting according to the present embodiment may further include, after step 103:
and 105, receiving the current traction force value fed back by the traction unit, and displaying the current traction force value to a user through a display interface.
After the vehicle control system sends the calculated traction value to the traction unit, the traction unit starts to apply traction, and the traction is increased from zero. In the initial stage of increasing the traction force, because the traction force is smaller than the braking force, if the traction unit fails, the traction force cannot be normally applied, the vehicle cannot be started, and the vehicle can slide in severe cases; in the embodiment, the vehicle control system can receive the current traction force value sent by the traction unit in real time and display the current traction force value to a user through the display interface; therefore, a user can judge the traction force application condition through the current traction force value displayed on the display interface in real time, and if the traction force cannot be normally applied, the traction unit is maintained or other remedial measures are taken in time, so that the driving safety of the vehicle is improved.
Optionally, the Display interface may be a Display interface of a Liquid Crystal Display (LCD) or a Display interface of a Light Emitting Diode (LED), and a user may set the Display interface according to actual requirements, which is not limited in this embodiment.
In the process that the vehicle starts on the slope, if the brake unit breaks down, the vehicle can also slide due to the fact that the brake unit cannot brake, and therefore hidden dangers are brought to personal safety of users. In order to further improve the safety of vehicle operation, the method for controlling vehicle starting provided by the embodiment may further include, after step 104:
and 106, receiving the current braking force value fed back by the braking unit, and displaying the current braking force value to a user through a display interface.
After receiving a braking relieving request sent by a traction unit, a vehicle control system sends a braking relieving instruction to a braking unit according to the braking relieving request, and under the condition that the braking unit is in normal operation, the braking unit relieves the braking force according to the application condition of traction force after receiving the braking relieving instruction, but if the braking unit fails, the braking force can be relieved rapidly, namely the braking force can drop to zero suddenly, and under the condition, if the current traction force is smaller than the component force of the vehicle gravity along the slope downwards, the vehicle can slide; in the embodiment, the vehicle control system can receive the current braking force value sent by the braking unit in real time and display the current braking force value to a user through the display interface; the method and the device have the advantages that a user can judge the brake force relieving situation through the current brake force value displayed on the display interface in real time, if the brake force relieving situation is abnormal, the application of traction force is stopped, and the brake unit is maintained in time, so that the driving safety of the vehicle is improved.
Optionally, after receiving the current traction force value and the current braking force value, the vehicle control system may store the traction force value and the braking force value when the traction unit starts to apply traction force to the vehicle during the successful start, draw an intersection graph between the two parameters, and further display the intersection graph to the user through the display interface.
FIG. 4 is a schematic illustration of an intersection of a traction force value and a braking force value during application of traction force; as shown in fig. 4, Ft represents a variation curve of traction force values during traction force application, Fb represents a variation curve of braking force values during traction force application, G1 is a component force of gravity of the vehicle downward along a slope, x-axis represents a time interval T from when traction unit starts to apply traction force until the vehicle is successfully started, and y-axis represents a force magnitude F; as can be seen from fig. 4, when the traction unit and the brake unit are both in the normal working condition, the value of the braking force is greater than the traction force value in the initial stage, the traction unit starts to apply traction force after receiving the traction force value needing to be applied sent by the vehicle control system, and the value of the traction force starts to increase along with time; after receiving a braking instruction sent by a vehicle control system, a braking unit starts to implement braking mitigation, namely, a braking force value starts to decrease; when the traction force value is increased to be equal to the braking force value, namely the traction force value and the braking force value are both equal to G1, the traction force value is kept stable, the braking force value is continuously relieved until the moment t2, the braking force is relieved, Ft is continuously increased, and the vehicle can be started stably.
It should be noted that the traction force application rate needs to be greater than the braking force release rate at the stage prior to t1 to reduce the possibility of vehicle rolling.
The method for controlling vehicle starting provided by the embodiment has the similar implementation principle and technical effects as the embodiment, and on the basis of the first embodiment, after the step 103, the current traction force value fed back by the traction unit is received and displayed to a user through a display interface; the traction force applying condition can be judged through the current traction force value displayed on the display interface in real time by a user, if the traction force value cannot be normally applied, the traction unit is timely overhauled, and the running safety of the vehicle is improved. Meanwhile, after the step 104, receiving a current braking force value fed back by the braking unit, and displaying the current braking force value to a user through a display interface; the braking force relieving condition can be judged by a user through the current braking force value displayed on the display interface in real time, if the braking force relieving condition is found to be abnormal, the traction force application is stopped, the brake unit is overhauled in time, and the running safety of the vehicle is further improved.
Fig. 5 is a flowchart of a third embodiment of the method for controlling vehicle starting according to the present invention, in order to increase the efficiency of applying tractive force by the traction unit, based on the embodiment shown in fig. 2, the method for controlling vehicle starting according to the present embodiment further describes an implementation manner of step 103, and as shown in fig. 5, step 103 may specifically be:
and step 1031, sending the traction force value to a traction execution mechanism in the traction unit so that the traction execution mechanism applies traction force according to the traction force value.
The vehicle control system calculates the traction force to be applied and then directly sends the calculated traction force to the traction execution mechanism in the traction unit so as to enable the traction execution mechanism to apply the traction force and improve the traction force application efficiency.
In order to increase the efficiency of applying the brake mitigation by the brake unit, on the basis of the embodiment shown in fig. 2, the method for controlling the vehicle to start provided by this embodiment further describes an implementation manner of step 104, as shown in fig. 5, step 104 may specifically be:
step 1041, sending a brake release instruction to a brake executing mechanism in the brake unit according to the brake release request, so that the brake executing mechanism applies brake release according to the brake release instruction.
In order to improve the efficiency of applying brake releasing by the brake unit, a mechanism specially used for implementing brake releasing can be arranged in the brake unit, and the vehicle control system directly sends a brake releasing instruction to the brake executing mechanism according to the brake releasing request sent by the traction unit without a control device in the traction unit, so that the efficiency of releasing the brake force is improved.
The method for controlling the vehicle to start provided by the embodiment has the similar realization principle and technical effect as the second embodiment, and on the basis of the second embodiment, the traction force value is sent to the traction execution mechanism in the traction unit, so that the traction execution mechanism applies traction force according to the traction force value; meanwhile, a brake release instruction is sent to the brake executing mechanism in the brake unit according to the brake release request, so that the brake executing mechanism applies brake release according to the brake release instruction, and the efficiency of applying traction by the traction unit and the efficiency of applying brake release by the brake unit are improved.
Fig. 6 is a schematic structural diagram of a first embodiment of a system for controlling vehicle start according to the present invention, and as shown in fig. 6, the system for controlling vehicle start according to the present embodiment includes:
the receiving module 10 is used for receiving the gradient information sent by the gradient collecting device;
the calculation module 11 is used for calculating a traction force value required by starting according to the gradient information, the traction handle level and the vehicle load information;
the sending module 12 is configured to send the traction force value to a traction unit, so that the traction unit applies traction force according to the traction force value;
the receiving module 10 is further configured to receive a braking mitigation request sent by the traction unit;
the sending module 12 is further configured to send a brake release instruction to a brake unit according to the brake release request, so that the brake unit applies brake release according to the brake release instruction.
The system for controlling vehicle start provided in this embodiment may be used to execute the method for controlling vehicle start shown in fig. 2, and the implementation principle and technical effect are similar, and are not described herein again.
In order to further improve the safety of vehicle operation, in the second embodiment of the system for controlling vehicle start provided by the present invention, the receiving module 10 is further configured to receive the current traction force value fed back by the traction unit after the sending module 12 sends the traction force value to the traction unit, and display the current traction force value to the user through the display interface.
Optionally, the receiving module 10 is further configured to receive the current braking force value fed back by the braking unit after the sending module 12 sends the braking mitigation instruction to the braking unit according to the braking mitigation request, and display the current braking force value to the user through a display interface.
In order to improve the efficiency of the traction unit in applying traction, the sending module 12 may be specifically configured to send the traction force value to a traction actuator in the traction unit, so that the traction actuator applies traction according to the traction force value.
The system for controlling vehicle start provided in this embodiment may be used to execute the method for controlling vehicle start shown in fig. 3 or fig. 5, and the implementation principle and technical effect are similar, and are not described herein again.
The device for controlling vehicle starting provided by the invention can comprise the system for controlling vehicle starting, the gradient acquisition device, the traction unit and the brake unit, which are provided by any embodiment, and the implementation principle and the technical effect are similar, and are not repeated herein.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (7)
1. A method of controlling vehicle launch, comprising:
receiving gradient information sent by a gradient acquisition device in real time;
calculating a traction force value required by starting according to the gradient information, the traction handle level and the vehicle load information;
sending the traction value to a traction unit so that the traction unit applies traction according to the traction value;
receiving a braking relieving request sent by the traction unit, and sending a braking relieving instruction to a braking unit according to the braking relieving request so that the braking unit applies braking relieving according to the braking relieving instruction;
when the vehicle control system does not receive the braking relieving request sent by the traction unit, whether the braking relieving request is sent to the braking unit is judged according to the running speed and the traction torque of the vehicle;
the sending the traction force value to a traction unit to enable the traction unit to apply traction force according to the traction force value comprises:
sending the traction force value to a traction execution mechanism in the traction unit so that the traction execution mechanism applies traction force according to the traction force value;
the sending a brake release instruction to a brake unit according to the brake release request to enable the brake unit to apply brake release according to the brake release instruction includes:
and sending a brake release instruction to a brake execution mechanism in the brake unit according to the brake release request, so that the brake execution mechanism applies brake release according to the brake release instruction.
2. The method of claim 1, wherein after sending the traction value to a traction unit to cause the traction unit to apply traction in accordance with the traction value, further comprising:
and receiving the current traction force value fed back by the traction unit, and displaying the current traction force value to a user through a display interface.
3. The method of claim 2, wherein after sending a brake mitigation instruction to a brake unit based on the brake mitigation request to cause the brake unit to apply brake mitigation based on the brake mitigation instruction, further comprising:
and receiving the current braking force value fed back by the braking unit, and displaying the current braking force value to a user through a display interface.
4. A system for controlling vehicle launch, comprising:
the receiving module is used for receiving the gradient information sent by the gradient acquisition device;
the calculation module is used for calculating a traction force value required by starting according to the gradient information, the traction handle level and the vehicle load information;
the sending module is used for sending the traction force value to a traction unit so that the traction unit applies traction force according to the traction force value;
the receiving module is also used for receiving a braking relieving request sent by the traction unit;
the sending module is further configured to send a brake release instruction to a brake unit according to the brake release request, so that the brake unit applies brake release according to the brake release instruction;
the sending module is also used for sending a braking relieving request to the braking unit when the vehicle control system does not receive the braking relieving request sent by the traction unit and the vehicle control system judges that the braking relieving request needs to be sent to the braking unit according to the running speed and the traction torque of the vehicle;
the sending module is specifically configured to send the traction force value to a traction execution mechanism in the traction unit, so that the traction execution mechanism applies traction force according to the traction force value.
5. The system of claim 4,
the receiving module is further used for receiving the current traction force value fed back by the traction unit after the traction force value is sent to the traction unit by the sending module, and displaying the current traction force value to a user through a display interface.
6. The system of claim 5,
the receiving module is further used for receiving the current braking force value fed back by the braking unit after the sending module sends a braking relieving instruction to the braking unit according to the braking relieving request, and displaying the current braking force value to a user through a display interface.
7. An arrangement for controlling the starting of a vehicle, characterized in that it comprises a system according to any of claims 4-6, a gradient gathering device, a traction unit and a brake unit.
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| CN201711239723.7A CN108099909B (en) | 2017-11-30 | 2017-11-30 | Method, system and device for controlling vehicle starting |
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| CN201711239723.7A CN108099909B (en) | 2017-11-30 | 2017-11-30 | Method, system and device for controlling vehicle starting |
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| CN108099909B true CN108099909B (en) | 2020-04-14 |
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| CN110962827B (en) * | 2018-09-30 | 2022-03-22 | 株洲中车时代电气股份有限公司 | Train brake release keeping method and device, network controller and train |
| CN110155006B (en) * | 2019-05-09 | 2020-06-23 | 中车青岛四方机车车辆股份有限公司 | Train brake-maintaining and buffering system and method and train |
| CN110614985B (en) * | 2019-09-26 | 2020-12-11 | 中车株洲电力机车有限公司 | Brake mitigation control method and device |
| CN110654404B (en) * | 2019-11-01 | 2020-09-29 | 河北京车轨道交通车辆装备有限公司 | Rail train starting method and system |
| CN112776775B (en) * | 2019-11-07 | 2022-03-29 | 株洲中车时代电气股份有限公司 | Method, system and equipment for relieving braking of forced train |
| CN110667656B (en) * | 2019-11-14 | 2021-10-22 | 中车株洲电力机车有限公司 | Control method and device |
| CN110936935B (en) * | 2019-12-13 | 2021-04-06 | 深圳市元征科技股份有限公司 | Brake assisting method and device for gradient starting, vehicle-mounted equipment and medium |
| CN112721887A (en) * | 2021-01-19 | 2021-04-30 | 中车青岛四方机车车辆股份有限公司 | Holding brake control method and system and railway vehicle |
| CN113715635B (en) * | 2021-09-03 | 2023-06-16 | 中铁工程装备集团隧道设备制造有限公司 | Traction locomotive and traction locomotive ramp auxiliary starting control method |
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| CN103802832A (en) * | 2012-11-12 | 2014-05-21 | 奥托立夫开发公司 | Hill start assist method |
| CN105292123A (en) * | 2015-11-26 | 2016-02-03 | 南车株洲电力机车有限公司 | Urban rail vehicle starting control method |
| CN206086718U (en) * | 2016-10-08 | 2017-04-12 | 浙江吉利控股集团有限公司 | Prevent controlling means on vehicle starting swift current slope |
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