CN111619368A - Vehicle starting control method and cargo vehicle - Google Patents

Vehicle starting control method and cargo vehicle Download PDF

Info

Publication number
CN111619368A
CN111619368A CN202010477874.1A CN202010477874A CN111619368A CN 111619368 A CN111619368 A CN 111619368A CN 202010477874 A CN202010477874 A CN 202010477874A CN 111619368 A CN111619368 A CN 111619368A
Authority
CN
China
Prior art keywords
gear
vehicle
critical
load
load state
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010477874.1A
Other languages
Chinese (zh)
Other versions
CN111619368B (en
Inventor
高上览
胡检发
陈冠清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sany Special Vehicle Co Ltd
Original Assignee
Sany Special Vehicle Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sany Special Vehicle Co Ltd filed Critical Sany Special Vehicle Co Ltd
Priority to CN202010477874.1A priority Critical patent/CN111619368B/en
Publication of CN111619368A publication Critical patent/CN111619368A/en
Application granted granted Critical
Publication of CN111619368B publication Critical patent/CN111619368B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2072—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/26—Vehicle weight
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Abstract

The invention provides a vehicle starting control method and a cargo vehicle. The vehicle starting control method comprises the following steps: receiving a starting instruction of a vehicle; acquiring load information and gear information of the vehicle according to the starting instruction; determining the load state of the vehicle according to the load information, and determining the current gear of the vehicle according to the gear information; and controlling the vehicle to start in a gear not higher than a critical gear according to the load state and the current gear, wherein the gears of the vehicle are arranged from low to high according to the transmission ratio from high to low, and the critical gear is the highest gear allowed when the vehicle starts in different load states. According to the technical scheme, the gear can be effectively limited when the vehicle starts, the phenomenon of high-gear starting of the vehicle is prevented, different gear threshold values can be set according to different load states of the vehicle, abrasion of a friction plate of the clutch is favorably reduced, maintenance cost is reduced, extra parts are not needed, the principle is simple, and the method is easy to implement.

Description

Vehicle starting control method and cargo vehicle
Technical Field
The invention relates to the technical field of vehicle control, in particular to a vehicle starting control method and a cargo vehicle.
Background
When the cargo vehicle is started, the driver may directly shift the gear to the high gear, i.e. the high gear starts, due to the complex road conditions and the non-standard operation of the driver. However, when the vehicle starts in a high gear, particularly under a heavy load condition, the speed ratio of the gearbox is large, the torque is small, severe friction is generated between friction plates of the clutch, the friction plates are damaged, the performance of the clutch is further reduced, and even the clutch is overloaded and burnt. In the prior art, for the situation of high-gear starting of a vehicle, although the high-gear starting of the vehicle can be prevented according to whether the vehicle is in a starting state or not and whether a gear signal is the high-gear signal or not, the starting situations of the vehicle in different load states are not analyzed, and the vehicle cannot be started in a more proper gear.
Disclosure of Invention
The present invention is directed to improving at least one of the technical problems of the prior art or the related art.
To this end, it is an object of the present invention to provide a vehicle start control method.
It is another object of the present invention to provide a cargo vehicle.
In order to achieve the above object, a first aspect of the present invention provides a vehicle start control method, including: step S100: receiving a starting instruction of a vehicle; step S200: acquiring load information and gear information of the vehicle according to the starting instruction; step S300: determining the load state of the vehicle according to the load information, and determining the current gear of the vehicle according to the gear information; step S400: and controlling the vehicle to start in a gear not higher than a critical gear according to the load state and the current gear, wherein the gears of the vehicle are arranged from low to high according to the transmission ratio from high to low, and the critical gear is the highest gear allowed when the vehicle starts in different load states.
According to the technical scheme of the first aspect of the invention, when a starting instruction of the vehicle is received, the load information of the vehicle is acquired, and the load state of the vehicle can be determined according to the load information so as to determine whether the vehicle is in a heavy load state or a light load state at present; by acquiring the gear information of the vehicle, the current gear of the vehicle can be determined according to the gear information, so that targeted control operation can be conveniently carried out. The starting gear of the vehicle is controlled according to the load state of the vehicle and the current gear, so that the vehicle can be started in the gear which is not higher than the critical gear, the starting gear of the vehicle is matched with the load state, the high-gear starting phenomenon is prevented, the abrasion of a clutch plate can be reduced, meanwhile, the damage to an engine and a transmission is reduced, and the maintenance cost is reduced. The gears of the vehicle are arranged from low to high according to the transmission ratio from large to small, for example, a six-gear transmission, and the gears are sequentially increased and the transmission ratio is sequentially decreased from first gear to sixth gear. The critical gear is the highest gear allowed when the vehicle starts in different load states, the highest starting gear of the vehicle can be limited when the vehicle is in different load states, and the highest starting gear is different according to different load states, so that the vehicle can start in a proper gear in any load state.
In addition, the vehicle starting control method in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, the load state includes a heavy load state, a light load state and an idle state, the critical gear includes a first critical gear and a second critical gear, and the step S300: determining the load state of the vehicle according to the heavy load information, which specifically comprises the following steps: step S310: determining the load capacity of the vehicle according to the load information; step S320: judging whether the load capacity of the vehicle is larger than a load threshold value or not, and generating a first judgment result; if the first determination result is yes, go to step S330: determining that the vehicle is in a heavy load state; step S400 includes step S410: controlling the vehicle to start at a gear not higher than a first critical gear according to the load state and the current gear; if the first determination result is negative, go to step S340: determining that the vehicle is in a light load state or a no-load state; step S400 includes step S420: and controlling the vehicle to start at a gear not higher than a second critical gear according to the load state and the current gear, wherein the first critical gear is lower than the second critical gear.
In the technical scheme, the loading state of the vehicle comprises a heavy-load state, a light-load state and an idle state. The critical gears include a first critical gear corresponding to a heavy load condition of the vehicle and a second critical gear corresponding to a light load condition or an unloaded condition of the vehicle. In the specific step of step S300, the load capacity of the vehicle is determined from the load information as a basis for determining the load state of the vehicle. And determining whether the vehicle is in a heavy-load state or not by comparing the magnitude relation between the load capacity and the load threshold value so as to provide a basis for subsequent control operation. If the load capacity is larger than the load threshold value, the vehicle is in a heavy load state, and at the moment, the vehicle is controlled to start in a gear which is not higher than a first critical gear according to the load state and the current gear of the vehicle; and if the load capacity is not greater than the load threshold value, indicating that the vehicle is in a light load state or an idle load state, and controlling the vehicle to start at a gear not higher than a second critical gear according to the load state and the current gear. The load threshold is a critical value of a heavy load state and a light load state, and can be specifically distinguished in proportion according to the full load capacity of the vehicle, for example, the load threshold can be 30% to 50% of the full load capacity. The first critical gear is lower than the second critical gear, so that the highest starting gear allowed by the vehicle in a heavy load state is lower than the highest starting position allowed in a light load or no-load state, and when the vehicle starts in the heavy load state, higher output power can be provided to ensure normal starting.
When the transmission of the vehicle is a main-auxiliary box transmission, the first critical gear may correspond to a low-speed region, and the second critical gear may correspond to a high-speed region, so that when the vehicle starts in a gear of the low-speed region or in a gear of the high-speed region, the starting gear of the vehicle can be limited, and the phenomenon of starting in a high-speed region is prevented.
In the above technical solution, step S410: according to the load state and the current gear, the vehicle is controlled to start in a gear not higher than a first critical gear, and the method specifically comprises the following steps: step S411: judging whether the current gear is higher than a first critical gear or not, and generating a second judgment result; if the second determination result is yes, step S412 is executed: controlling an engine of the vehicle to reduce the output power below a power threshold value, simultaneously outputting gear-down prompt information, and repeating the step S411 after the first time; if the second determination result is negative, go to step S413: controlling the vehicle to start at the current gear; step S420: according to the load state and the current gear, the vehicle is controlled to start in a gear not higher than a second critical gear, and the method specifically comprises the following steps: step S421: judging whether the current gear is higher than a second critical gear or not, and generating a third judgment result; if the third determination result is yes, go to step S422: controlling an engine of the vehicle to reduce the output power below a power threshold value, simultaneously outputting gear-down prompt information, and repeating the step S421 after a second time; if the third determination result is negative, go to step S423: and controlling the vehicle to start in the current gear, wherein the power threshold is the minimum power which can enable the vehicle to start.
In the technical scheme, in the specific step of step S410, it is determined whether the vehicle will start in a high gear by judging whether the current gear of the vehicle is higher than a first critical gear. If the current gear of the vehicle is higher than the first critical gear, the current gear of the vehicle is indicated to exceed an allowed starting gear, the output power is reduced to be below a power threshold value through controlling an engine of the vehicle, so that the vehicle is prevented from starting at the current gear, and meanwhile, downshift prompt information is output to prompt a driver to timely lower the gear so as to prevent the occurrence of a high-gear starting phenomenon; the above-described determination step S411 is repeatedly performed after the first time to determine whether the shift range of the vehicle is switched to the allowable shift range. And if the current gear of the vehicle is lower than or equal to the first critical gear, the current gear of the vehicle is in an allowed starting gear range, and at the moment, the vehicle is controlled to start in the current gear so that the vehicle can normally run.
Similarly, in the specific step of step S420, it is determined whether the vehicle is going to start at a high gear by determining whether the current gear of the vehicle is higher than a second critical gear, and if the current gear of the vehicle is higher than the second critical gear, it indicates that the current gear of the vehicle is beyond an allowable starting gear range, at this time, the vehicle is controlled to reduce the output power below the power threshold to prevent the vehicle from starting at the current gear, and at the same time, the downshift prompt message is output to prompt the driver to reduce the gear in time to prevent the occurrence of the high gear starting phenomenon; the above-described determination step S421 is repeated after the second time to determine whether the shift range of the vehicle is switched to the allowable shift range. And if the current gear of the vehicle is lower than or equal to the second critical gear, the current gear of the vehicle is in the allowed starting gear range, and at the moment, the vehicle is controlled to start in the current gear so that the vehicle can normally run.
In the above technical solution, the prompt information includes one or a combination of more of image prompt information, text prompt information, sound prompt information, or indicator light prompt information.
In the technical scheme, the prompt message can be an image prompt message so as to remind the operator through visual image information, and the image prompt message is visual and vivid. The prompt information can also be character prompt information, and the information expressed by the characters is accurate, so that an operator can accurately know the content of the prompt information. The prompt message can also be a sound prompt message which comprises prompt tones and voice, the sound message does not need to be actively watched by an operator, the passive information content receiving can be realized, and the normal operation of the operator is not influenced. In addition, the prompt message can also be an indicator light prompt message, and the operation of lighting, extinguishing or flashing the indicator light is performed to remind the operator. Of course, the prompt information may also be a combination of the above prompt information in various forms to further enhance the prompt effect, so that the operator can timely know the current gear state of the vehicle, and timely perform downshift operation, so that the vehicle can start normally.
In the above technical solution, step S410: according to the load state and the current gear, the vehicle is controlled to start in a gear not higher than a first critical gear, and the method specifically comprises the following steps: step S414: judging whether the current gear is higher than a first critical gear or not, and generating a fourth judgment result; if the fourth determination result is yes, step S415 is executed: controlling the gear of the vehicle to be reduced to a first critical gear, and controlling the vehicle to start; if the fourth determination result is negative, go to step S416: controlling the vehicle to start at the current gear; step S420: according to the load state and the current gear, the vehicle is controlled to start in a gear not higher than a second critical gear, and the method specifically comprises the following steps: step S424: judging whether the current gear is higher than a second critical gear or not, and generating a fifth judgment result; if the fifth determination result is yes, go to step S425: controlling the gear of the vehicle to be reduced to a second critical gear, and controlling the vehicle to start; if the fifth determination result is negative, go to step S426: and controlling the vehicle to start at the current gear.
In the technical scheme, in the specific step of step S410, it is determined whether the vehicle will start in a high gear by judging whether the current gear of the vehicle is higher than a first critical gear. If the current gear of the vehicle is higher than the first critical gear, the current gear of the vehicle is indicated to exceed the allowed starting gear, and the gear of the vehicle is controlled to be reduced to the first critical gear, so that the vehicle can be normally started in the allowed starting gear, and the high-gear starting phenomenon is prevented. And if the current gear of the vehicle is lower than or equal to the first critical gear, the current gear of the vehicle is in an allowed starting gear range, and at the moment, the vehicle is controlled to start in the current gear so that the vehicle can normally run.
Similarly, in the specific step of step S420, it is determined whether the vehicle will send a high-gear start phenomenon by determining whether the current gear of the vehicle is higher than the second critical gear, and if the current gear of the vehicle is higher than the second critical gear, it indicates that the current gear of the vehicle has exceeded the allowable start gear range, at this time, the high-gear start phenomenon will occur during the start, and the gear of the vehicle is controlled to be lowered to the second critical gear, so that the vehicle starts normally at the allowable start gear, and the high-gear start phenomenon is prevented from occurring. And if the current gear of the vehicle is lower than or equal to the second critical gear, the current gear of the vehicle is in the allowed starting gear range, and at the moment, the vehicle is controlled to start in the current gear so that the vehicle can normally run.
According to the vehicle starting control method, when the current gear of the vehicle exceeds the allowed gear range, the gear is directly switched to the allowed gear range, manual operation of an operator is not required to be waited, and starting operation efficiency can be improved while high-gear starting is prevented.
In a second aspect of the present invention, there is provided a cargo vehicle, including: a vehicle body; the container is arranged on the vehicle body; the detector is arranged at the bottom of the container and used for detecting the load information of the container; and the controller is electrically connected with the vehicle body and the detector, determines the load state according to the load information when receiving a starting instruction, and controls the vehicle body to start at a gear not higher than a critical gear according to the load state, wherein the gears are arranged from low to high according to the transmission ratio from high to low, and the critical gear is the highest gear allowed by the starting of the cargo vehicle in different load states.
According to a second aspect of the invention, a cargo vehicle includes a body, a cargo box, a detector, and a controller. The packing box is arranged on the vehicle body to move along with the vehicle and be used for transporting goods. The detector is arranged at the bottom of the container to detect the load information of the container; the detector is electrically connected with the controller to send load information of the cargo box to the controller. The controller is electrically connected with the vehicle body, when a starting instruction corresponding to the vehicle body is received, the controller determines the load state of the container according to the load information, and then the vehicle body is controlled to start at a gear with the transmission ratio not higher than a critical gear according to the load state, so that the high-gear starting phenomenon is prevented, the abrasion of the clutch friction plate is favorably reduced, and meanwhile, the damage to the engine and the transmission can be reduced. The critical gear is the highest gear allowed when the vehicle starts in different load states, the highest starting gear of the vehicle can be limited when the vehicle is in different load states, and the highest starting gear is different according to different load states, so that the vehicle can start in a proper gear in any load state.
In the technical scheme, the vehicle body is provided with an engine, a clutch and a transmission, an output shaft of the engine is connected or disconnected with an input shaft of the transmission through the clutch, the controller is electrically connected with the engine and the transmission respectively, and when a starting instruction is received, the controller controls the output power of the engine or the gear of the transmission according to the load information and the size relation between the current gear and the critical gear of the transmission, so that the vehicle body is started in the gear not higher than the critical gear.
In the technical scheme, the vehicle body is provided with an engine, a clutch and a transmission and is used for driving the vehicle body to run. The output shaft of the engine may be connected or disconnected with the output shaft of the transmission through a clutch to control power transmission of the engine. The gears of the transmission are sequentially arranged from low to high according to the transmission ratio from large to small so as to facilitate gear shifting operation. The controller is electrically connected to the engine and the transmission, respectively, to control the operating states of the engine and the transmission. When a starting instruction is received, the controller determines a load state according to load information of the container, and controls the output power of the engine or the gear of the transmission according to the magnitude relation between the current gear of the transmission and the corresponding critical gear, so that the vehicle body is started in a gear not higher than the critical gear, the high-gear starting phenomenon is prevented, the abrasion of a friction plate of the clutch is reduced, and the damage to the engine and the transmission is reduced. Specifically, when the gear of the transmission is higher than a critical gear, the controller can control the engine to reduce the output power to prevent the vehicle body from starting in the current gear until an operator actively lowers the gear to an allowable starting gear, or directly control the gear of the transmission to be switched to an allowable starting gear range.
In the above technical solution, the critical gear includes: a first critical gear corresponding to a heavy load state of the cargo box; and the second critical gear corresponds to a light load state or an idle load state of the container, wherein the first critical gear is lower than the second critical gear.
In the technical scheme, the critical gears comprise a first critical gear and a second critical gear which respectively correspond to a heavy load state and a light load state of the vehicle body, so that the allowable starting gear ranges of the vehicle body under different load states are different, and the vehicle body is suitable for starting operation. The first critical gear is lower than the second critical gear, namely, the highest gear of the vehicle body which is started in a heavy load state is lower relative to the vehicle body which is started in a light load state or an idle state, so that the vehicle body obtains a larger transmission ratio to provide enough traction force. When the transmission is a main-auxiliary box transmission, the first critical gear may correspond to a low-speed region, and the second critical gear may correspond to a high-speed region, so that when the vehicle starts in a gear in the low-speed region or in a gear in the high-speed region, the starting gear of the vehicle can be limited, and the phenomenon of starting in a high-speed region is prevented.
In the above technical solution, the cargo vehicle further includes: the prompting device is arranged on the vehicle body and used for outputting prompting information corresponding to the gear of the transmission, the prompting information is one or a combination of multiple of image prompting information, character prompting information, sound prompting information or indicating lamp prompting information, the controller is electrically connected with the prompting device so as to control the working state of the prompting device according to the gear of the transmission, and when a starting instruction is received, if the gear is higher than a critical gear, the controller controls the prompting device to output the prompting information.
In the technical scheme, the prompting device is arranged on the vehicle body to output the prompting information corresponding to the gear of the transmission, so that when the starting gear is higher than the critical gear, the prompting information output by the prompting device reminds an operator to timely downshift, and the vehicle body can be started normally. The prompt message can be an image prompt message so as to remind the operator through visual image information, and the image prompt message is visual and vivid. The prompt information can also be character prompt information, and the information expressed by the characters is accurate, so that an operator can accurately know the content of the prompt information. The prompt message can also be a sound prompt message which comprises prompt tones and voice, the sound message does not need to be actively watched by an operator, the passive information content receiving can be realized, and the normal operation of the operator is not influenced. In addition, the prompt message can also be an indicator light prompt message, and the operation of lighting, extinguishing or flashing the indicator light is performed to remind the operator. Of course, the prompt information may also be a combination of the above prompt information in various forms to further enhance the prompt effect, so that the operator can know the current gear state of the vehicle in time.
In the technical scheme, the cargo vehicle is a dump truck; and/or the controller is an engine controller of the cargo vehicle.
In the technical scheme, the cargo vehicle is a dumper, so that when the dumper transports cargos, the starting gear can be controlled, and the high-gear starting phenomenon is prevented. The engine controller is an engine controller of the cargo vehicle, so that the existing engine controller of the cargo vehicle is utilized, integrated control is realized, special control equipment does not need to be additionally arranged, connection is simplified, and cost is reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a flow chart of a vehicle launch control method according to one embodiment of the invention;
FIG. 2 shows a flow chart of a vehicle launch control method according to an embodiment of the invention;
FIG. 3 shows a flow chart of a vehicle launch control method according to an embodiment of the invention;
FIG. 4 shows a flow chart of a vehicle launch control method according to an embodiment of the invention;
FIG. 5 shows a schematic block diagram of a cargo vehicle according to an embodiment of the invention;
FIG. 6 shows a schematic block diagram of a cargo vehicle according to an embodiment of the invention;
FIG. 7 shows a schematic block diagram of a cargo vehicle according to one embodiment of the present invention.
Wherein the correspondence between the components and reference numerals in fig. 5 to 7 is as follows:
1 cargo vehicle, 11 body, 111 engine, 112 clutch, 113 transmission, 114 advisory unit, 12 cargo box, 13 detector, 14 controller.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A vehicle take-off control method and a cargo vehicle according to some embodiments of the invention are described below with reference to fig. 1 to 7.
Example one
The embodiment provides a vehicle starting control method, as shown in fig. 1, including the following steps:
step S100: receiving a starting instruction of a vehicle;
step S200: acquiring load information and gear information of the vehicle according to the starting instruction;
step S300: determining the load state of the vehicle according to the load information, and determining the current gear of the vehicle according to the gear information;
step S400: and controlling the vehicle to start at a gear not higher than the critical gear according to the load state and the current gear.
The gears of the vehicle are arranged from low to high according to the transmission ratio from high to low, and the critical gear is the highest gear allowed when the vehicle starts in different load states.
In the present embodiment, when a start instruction of the vehicle is received, through steps S200 and S300, load information and gear information of the vehicle are acquired, and a load state of the vehicle can be determined according to the load information to determine whether the vehicle is currently in a heavy load state or a light load state, and a current gear of the vehicle can be determined according to the gear information to facilitate a targeted control operation. Through the step S400, the starting gear of the vehicle is controlled according to the load state of the vehicle and the current gear, so that the vehicle is started in the gear which is not higher than the critical gear, the starting gear of the vehicle is adapted to the load state, the high-gear starting phenomenon is prevented, the abrasion of a clutch plate can be reduced, meanwhile, the damage to an engine and a transmission of the vehicle is reduced, and the maintenance cost is reduced. The gears of the vehicle are arranged from low to high according to the transmission ratio from large to small, for example, a six-gear transmission, and the gears are sequentially increased and the transmission ratio is sequentially decreased from first gear to sixth gear. The critical gear is the highest gear allowed when the vehicle starts in different load states, the highest starting gear of the vehicle can be limited when the vehicle is in different load states, and the highest starting gear is different according to different load states, so that the vehicle starts in the gear suitable for the current load state.
Example two
The embodiment provides a vehicle starting control method, as shown in fig. 2, including the following steps:
step S100: receiving a starting instruction of a vehicle;
step S200: acquiring load information and gear information of the vehicle according to the starting instruction;
step S310: determining the load capacity of the vehicle according to the load information;
step S320: judging whether the load capacity of the vehicle is larger than a load threshold value or not, and generating a first judgment result; if the first determination result is yes, executing step S330 and step S410, and if the first determination result is no, executing step S340 and step S420;
step S330: determining that the vehicle is in a heavy load state;
step S410: controlling the vehicle to start at a gear not higher than a first critical gear according to the load state and the current gear;
step S340: determining that the vehicle is in a light load state or a no-load state;
step S420: and controlling the vehicle to start at a gear not higher than the second critical gear according to the load state and the current gear.
The gear positions of the vehicle are arranged from low to high according to the transmission ratio from high to low, the load state of the vehicle comprises a heavy load state, a light load state and an idle load state, the first critical gear and the second critical gear are respectively the highest gear positions allowed by the vehicle in different load states, and the first critical gear is lower than the second critical gear.
The vehicle start control method provided by the embodiment further improves the steps S300 and S400 on the basis of the first embodiment. The load capacity of the vehicle is determined from the load information as a basis for determining the load state of the vehicle, via step S310. Through step S320, the magnitude relationship between the load capacity and the load threshold is compared to determine whether the vehicle is in a heavy load state, so as to provide a basis for subsequent control operations. If the load capacity is larger than the load threshold value, the vehicle is in a heavy load state, and at this time, the vehicle is controlled to start in a gear not higher than the first critical gear according to the load state and the current gear of the vehicle through step S410; if the load capacity is not greater than the load threshold, it indicates that the vehicle is in a light load state or an idle state, and at this time, in step S420, the vehicle is controlled to start in a gear not higher than the second critical gear according to the load state and the current gear. The starting gear can be correspondingly limited in a heavy load state, a light load state or a no-load state. The load threshold is a critical value of a heavy load state and a light load state, and can be specifically distinguished in proportion according to the full load capacity of the vehicle, for example, the load threshold can be 30% to 50% of the full load capacity. The first critical gear is lower than the second critical gear, for example, the first critical gear is two, the second critical gear is three, so that the highest starting gear allowed by the vehicle in a heavy-load state is lower than the highest starting position allowed in a light-load or no-load state, and when the vehicle starts in the heavy-load state, a larger transmission ratio can be provided to ensure normal starting.
When the transmission of the vehicle is a main-auxiliary box transmission, the first critical gear may correspond to a low-speed region, and the second critical gear may correspond to a high-speed region, so that when the vehicle starts in a gear of the low-speed region or in a gear of the high-speed region, the starting gear of the vehicle can be limited, and the phenomenon of starting in a high-speed region is prevented.
EXAMPLE III
The embodiment provides a vehicle starting control method, as shown in fig. 3, including the following steps:
step S100: receiving a starting instruction of a vehicle;
step S200: acquiring load information and gear information of the vehicle according to the starting instruction;
step S310: determining the load capacity of the vehicle according to the load information;
step S320: judging whether the load capacity of the vehicle is larger than a load threshold value or not, and generating a first judgment result; if the first determination result is yes, go to step S330, if the first determination result is no, go to step S340;
step S330: determining that the vehicle is in a heavy load state;
step S411: judging whether the current gear is higher than a first critical gear or not, and generating a second judgment result; if the second determination result is yes, go to step S412, if the second determination result is no, go to step S413;
step S412: controlling an engine of the vehicle to reduce the output power below a power threshold value, simultaneously outputting gear-down prompt information, and repeating the step S411 after the first time;
step S413: controlling the vehicle to start at the current gear;
step S340: determining that the vehicle is in a light load state or a no-load state;
step S421: judging whether the current gear is higher than a second critical gear or not, and generating a third judgment result; if the third determination result is yes, go to step S422, if the third determination result is no, go to step S423;
step S422: controlling an engine of the vehicle to reduce the output power below a power threshold value, simultaneously outputting gear-down prompt information, and repeating the step S421 after a second time;
step S423: and controlling the vehicle to start at the current gear.
The gear positions of the vehicle are arranged from low to high according to the transmission ratio from high to low, the load state of the vehicle comprises a heavy load state, a light load state and an idle load state, the first critical gear and the second critical gear are respectively the highest gear positions allowed by the vehicle in different load states, and the first critical gear is lower than the second critical gear.
The vehicle start control method provided by the embodiment further improves the steps S410 and S420 on the basis of the second embodiment. In the specific step of step S410, it is determined whether the current gear of the vehicle is higher than the first critical gear through step S411, and a second determination result is generated to determine whether the vehicle will start in a high gear. If the second judgment result is yes, the current gear of the vehicle is indicated to exceed the allowed starting gear, and then through the step S412, the engine of the vehicle is controlled to reduce the output power to be below the power threshold value so as to prevent the vehicle from starting at the current gear, and meanwhile, downshift prompt information is output so as to prompt a driver to timely reduce the gear so as to prevent the occurrence of the high-gear starting phenomenon; the above-described determination step S411 is repeatedly performed after the first time to determine whether the shift range of the vehicle is switched to the allowable shift range. If the second determination result is negative, it indicates that the current gear of the vehicle is within the allowable starting gear range, and at this time, in step S413, the vehicle is controlled to start in the current gear, so that the vehicle can normally run.
In the specific step of step S420, it is determined whether the current gear of the vehicle is higher than the second critical gear through step S421, and a third determination result is generated to determine whether the vehicle will transmit a high gear start phenomenon. If the third judgment result is yes, the current gear of the vehicle is indicated to be beyond the allowed starting gear range, and a high-gear starting phenomenon can occur during starting, through the step S422, the vehicle is controlled to reduce the output power to be below the power threshold value so as to prevent the vehicle from starting at the current gear, and meanwhile, downshift prompt information is output so as to prompt a driver to timely reduce the gear so as to prevent the high-gear starting phenomenon; the above-described determination step S421 is repeated after the second time to determine whether the shift range of the vehicle is switched to the allowable shift range. If the third judgment result is no, the current gear of the vehicle is in the allowed starting gear range, and at this time, the vehicle is controlled to start in the current gear through step S423, so that the vehicle can normally run.
Further, the prompt message includes one or more of an image prompt message, a text prompt message, a sound prompt message or an indicator light prompt message, wherein the sound prompt message may be a prompt tone or voice, and the indicator light prompt message may be an indicator light power, go out or flash. The prompt information in various forms is used for reminding the operator, so that the prompt effect is further enhanced, the operator can timely know the current gear state of the vehicle, the gear reduction operation is timely performed, and the vehicle can be started normally.
Example four
The embodiment provides a vehicle starting control method, as shown in fig. 4, including the following steps:
step S100: receiving a starting instruction of a vehicle;
step S200: acquiring load information and gear information of the vehicle according to the starting instruction;
step S310: determining the load capacity of the vehicle according to the load information;
step S320: judging whether the load capacity of the vehicle is larger than a load threshold value or not, and generating a first judgment result; if the first determination result is yes, go to step S330, if the first determination result is no, go to step S340;
step S330: determining that the vehicle is in a heavy load state;
step S414: judging whether the current gear is higher than a first critical gear or not, and generating a fourth judgment result; if the fourth determination result is yes, go to step S415, and if the fourth determination result is no, go to step S416;
step S415: controlling the gear of the vehicle to be reduced to a first critical gear, and controlling the vehicle to start;
step S416: controlling the vehicle to start at the current gear;
step S340: determining that the vehicle is in a light load state or a no-load state;
step S424: judging whether the current gear is higher than a second critical gear or not, and generating a fifth judgment result; if the fifth determination result is yes, go to step S425, if the fifth determination result is no, go to step S426;
step S425: controlling the gear of the vehicle to be reduced to a second critical gear, and controlling the vehicle to start;
step S426: and controlling the vehicle to start at the current gear.
The gear positions of the vehicle are arranged from low to high according to the transmission ratio from high to low, the load state of the vehicle comprises a heavy load state, a light load state and an idle load state, the first critical gear and the second critical gear are respectively the highest gear positions allowed by the vehicle in different load states, and the first critical gear is lower than the second critical gear.
The vehicle start control method provided by the embodiment further improves the steps S410 and S420 on the basis of the second embodiment. In the specific step of step S410, it is determined whether the current gear of the vehicle is higher than the first critical gear through step S414, and a fourth determination result is generated to determine whether the vehicle will start in a high gear. If the fourth determination result is yes, it indicates that the current gear of the vehicle exceeds the allowable starting gear, in this case, in step S415, the gear of the vehicle is controlled to be lowered to the first critical gear, so that the vehicle is normally started in the allowable starting gear, and the high-gear starting phenomenon is prevented. If the fourth judgment result is negative, the current gear of the vehicle is in the allowed starting gear range, and at the moment, the vehicle is controlled to start at the current gear, so that the vehicle can normally run.
In the specific step of step S420, it is determined whether the current gear of the vehicle is higher than the second threshold gear through step S424, and a fifth determination result is generated to determine whether the vehicle will send a high-gear start phenomenon, if the fifth determination result is no, it indicates that the current gear of the vehicle is beyond the allowable start gear range, at this time, the high-gear start phenomenon will occur during the start, and the gear of the vehicle is controlled to be lowered to the second threshold gear through step S425, so that the vehicle is normally started in the allowable start gear, and the high-gear start phenomenon is prevented from occurring. If the fifth judgment result is negative, the current gear of the vehicle is in the allowed starting gear range, and at the moment, the vehicle is controlled to start at the current gear, so that the vehicle can normally run.
EXAMPLE five
The present embodiment provides a cargo vehicle 1, as shown in fig. 5, including a vehicle body 11, a cargo box 12, a detector 13, and a controller 14. A cargo box 12 is provided on the vehicle body 11 to move with the vehicle for transporting cargo. The detector 13 is arranged at the bottom of the container 12 to detect the load information of the container 12; the detector 13 is electrically connected to the controller 14 to send load information of the cargo box 12 to the controller 14. The controller 14 is electrically connected with the vehicle body 11, and when receiving a start instruction corresponding to the vehicle body 11, the controller 14 determines the load state of the cargo box 12 according to the load information, and then controls the vehicle body 11 to start at a gear not higher than a critical gear according to the load state, so as to prevent a high-gear start phenomenon, reduce the wear of a friction plate of the clutch 112, and reduce the damage to the engine 111 and the transmission 113. Wherein, according to the transmission ratio from big to small, the gear is arranged from low to high. The critical gear is the highest gear allowed when the vehicle starts in different load states, the highest starting gear of the vehicle can be limited when the vehicle is in different load states, and the highest starting gear is different according to different load states, so that the vehicle can start in a proper gear in any load state.
EXAMPLE six
The present embodiment provides a cargo vehicle 1, as shown in fig. 6, including a vehicle body 11, a cargo box 12, a detector 13, and a controller 14.
The vehicle body 11 is provided with an engine 111, a clutch 112, and a transmission 113 for driving the vehicle body 11 to travel. An output shaft of the engine 111 may be connected or disconnected with an output shaft of the transmission 113 through the clutch 112 to control power transmission of the engine 111. The gears of the transmission 113 are arranged from low to high according to the transmission ratio from large to small, so as to facilitate the shift operation, for example, a six-gear transmission, and the gears are sequentially increased and the transmission ratio is sequentially decreased from first gear to sixth gear. The controller 14 is electrically connected to the engine 111 and the transmission 113, respectively, to control the operating states of the engine 111 and the transmission 113. A cargo box 12 is provided on the vehicle body 11 to move with the vehicle for transporting cargo. The detector 13 is arranged at the bottom of the container 12 to detect the load information of the container 12; the detector 13 is electrically connected to the controller 14 to send load information of the cargo box 12 to the controller 14.
When receiving a starting instruction, the controller 14 determines a load state according to load information of the cargo box 12, and controls the output power of the engine 111 or the gear of the transmission 113 according to the magnitude relation between the current gear of the transmission 113 and the corresponding critical gear, so that the vehicle body 11 starts in a gear not higher than the critical gear, and a high-gear starting phenomenon is prevented from occurring, so that abrasion of a friction plate of the clutch 112 is reduced, and damages to the engine 111 and the transmission 113 are reduced. Specifically, when the gear of the transmission 113 is higher than the threshold gear, the controller 14 may control the engine 111 to reduce the output power to prevent the vehicle body 11 from starting in the current gear until the operator actively reduces the gear to the allowable starting gear, or the controller 14 may directly control the gear of the transmission 113 to be shifted into the allowable starting gear range. The critical gear is the highest gear allowed when the vehicle starts in different load states, the highest starting gear of the vehicle can be limited when the vehicle is in different load states, and the highest starting gear is different according to different load states, so that the vehicle can start in a proper gear in any load state.
EXAMPLE seven
The present embodiment provides a cargo vehicle 1, which is further improved on the basis of the sixth embodiment.
The critical gears specifically include a first critical gear and a second critical gear, the first critical gear corresponds to a heavy load state of the vehicle body 11, and the second critical gear corresponds to a light load state and an idle state, so that the allowable starting gear ranges of the vehicle body 11 under different load states are different, and the vehicle is suitable for starting operation. The first critical gear is lower than the second critical gear, that is, the highest gear for starting the vehicle body 11 in a heavy load state is lower than the highest gear for starting in a light load state or an idle load state, so that the vehicle body 11 obtains a larger transmission ratio to provide sufficient traction. When the transmission 113 is a main-auxiliary transmission, the first critical gear may correspond to a low-speed range, and the second critical gear may correspond to a high-speed range, so that when the vehicle starts in a low-speed range or a high-speed range, the starting gear of the vehicle can be limited, and the high-speed starting phenomenon can be prevented.
Example eight
The present embodiment provides a cargo vehicle 1, which is further improved on the basis of the sixth embodiment.
As shown in fig. 7, the prompting device 114 is arranged on the vehicle body 11 to output the prompting information corresponding to the gear position of the transmission 113, so that when the starting gear position is higher than the critical gear position, the prompting information output by the prompting device 114 prompts an operator to downshift in time, so that the vehicle body 11 can be started normally. The prompting device 114 may be a display device, and outputs image prompting information to prompt an operator through visual image information, which is visual and vivid; the prompt information can also be character prompt information, and the information expressed by the characters is accurate, so that an operator can accurately know the content of the prompt information. The prompting device 114 can be a sound output device, and the output prompting information can be sound prompting information, including prompting sound or voice, and the sound information does not need to be actively watched by the operator, so that the information content can be passively received, and the normal operation of the operator is not affected. The prompting device 114 may also be an indicator light device, and the output prompting message may be an indicator light prompting message, which prompts the operator by the operation of turning on, off, or flashing an indicator light. Of course, the prompt information may also be a combination of the above prompt information in various forms to further enhance the prompt effect, so that the operator can know the current gear state of the vehicle in time.
Example nine
The present embodiment provides a cargo vehicle 1, which is further improved on the basis of the fifth embodiment.
The cargo vehicle 1 is a dump truck, and can control a starting gear to prevent a high-gear starting phenomenon when the dump truck transports goods. The controller 14 is an engine controller of the cargo vehicle 1, so that the existing engine controller of the cargo vehicle 1 is utilized to realize integrated control, special control equipment is not required to be additionally arranged, the connection is simplified, and the cost is reduced.
The technical scheme of the invention is explained in detail by combining the drawings, can effectively limit the gear when the vehicle starts, prevents the vehicle from starting in a high gear, can set different gear thresholds according to different loading states of the vehicle, is beneficial to reducing the abrasion of the friction plate of the clutch, reduces the maintenance cost, does not need to additionally add parts, has a simple principle, and is easy to realize.
In the present invention, it will be understood that any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, and the program may be stored in a computer readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A vehicle start control method characterized by comprising:
step S100: receiving a starting instruction of a vehicle;
step S200: acquiring load information and gear information of the vehicle according to the starting instruction;
step S300: determining the load state of the vehicle according to the load information, and determining the current gear of the vehicle according to the gear information;
step S400: controlling the vehicle to start at a gear not higher than a critical gear according to the load state and the current gear,
the gears of the vehicle are arranged from low to high according to the transmission ratio from large to small, and the critical gear is the highest gear allowed when the vehicle starts in different load states.
2. The vehicle startup control method according to claim 1, characterized in that the load state includes a heavy load state, a light load state, and an unloaded state, the critical gears include a first critical gear and a second critical gear, and the step S300: determining the load state of the vehicle according to the heavy load information, specifically comprising:
step S310: determining the load capacity of the vehicle according to the load information;
step S320: judging whether the load capacity of the vehicle is larger than a load threshold value or not, and generating a first judgment result;
if the first determination result is yes, go to step S330: determining that the vehicle is in a heavy-duty state;
the step S400 includes a step S410: controlling the vehicle to start at a gear which is not higher than the first critical gear according to the load state and the current gear;
if the first determination result is negative, go to step S340: determining that the vehicle is in the light-load state or the no-load state;
the step S400 includes a step S420: controlling the vehicle to start at a gear not higher than the second critical gear according to the load state and the current gear,
wherein the first critical gear is lower than the second critical gear.
3. The vehicle startup control method according to claim 2,
the step S410: according to the load state and the current gear, controlling the vehicle to start in a gear not higher than the first critical gear, specifically comprising:
step S411: judging whether the current gear is higher than the first critical gear or not, and generating a second judgment result;
if the second determination result is yes, go to step S412: controlling an engine of the vehicle to reduce the output power below a power threshold value, simultaneously outputting gear reduction prompt information, and repeating the step S411 after the first time;
if the second determination result is negative, go to step S413: controlling the vehicle to start at the current gear;
the step S420: according to the load state and the current gear, controlling the vehicle to start in a gear not higher than the second critical gear specifically comprises:
step S421: judging whether the current gear is higher than the second critical gear or not, and generating a third judgment result;
if the third determination result is yes, go to step S422: controlling the engine of the vehicle to reduce the output power below a power threshold value, simultaneously outputting gear-down prompt information, and repeating the step S421 after a second time;
if the third determination result is negative, go to step S423: controlling the vehicle to start in the current gear,
the power threshold is the minimum power capable of enabling the vehicle to start.
4. The vehicle startup control method according to claim 3,
the prompt message comprises one or more of image prompt message, text prompt message, sound prompt message or indicator light prompt message.
5. The vehicle startup control method according to claim 2,
the step S410: according to the load state and the current gear, controlling the vehicle to start in a gear not higher than the first critical gear, specifically comprising:
step S414: judging whether the current gear is higher than the first critical gear or not, and generating a fourth judgment result;
if the fourth determination result is yes, step S415 is executed: controlling the gear of the vehicle to be lowered to the first critical gear, and controlling the vehicle to start;
if the fourth determination result is negative, go to step S416: controlling the vehicle to start at the current gear;
the step S420: according to the load state and the current gear, controlling the vehicle to start in a gear not higher than the second critical gear specifically comprises:
step S424: judging whether the current gear is higher than the second critical gear or not, and generating a fifth judgment result;
if the fifth determination result is yes, go to step S425: controlling the gear of the vehicle to be lowered to the second critical gear, and controlling the vehicle to start;
if the fifth determination result is negative, execute step S426: and controlling the vehicle to start at the current gear.
6. A cargo-carrying vehicle characterized by comprising:
a vehicle body;
the container is arranged on the vehicle body;
the detector is arranged at the bottom of the container and used for detecting the load information of the container;
the controller is electrically connected with the vehicle body and the detector, determines a load state according to the load information when receiving a starting instruction, controls the vehicle body to start at a gear not higher than a critical gear according to the load state,
the gears are arranged from low to high according to the transmission ratio from high to low, and the critical gear is the highest gear allowed when the cargo vehicle starts in different load states.
7. The cargo vehicle of claim 6,
the vehicle body is provided with an engine, a clutch and a transmission, an output shaft of the engine is connected or disconnected with an input shaft of the transmission through the clutch,
the controller is respectively electrically connected with the engine and the transmission, and when the starting instruction is received, the controller controls the output power of the engine or the gear of the transmission according to the load information and the size relation between the current gear and the critical gear of the transmission, so that the vehicle body starts at the gear which is not higher than the critical gear.
8. The cargo vehicle of claim 7, wherein the threshold gear comprises:
a first critical gear corresponding to a heavy load state of the cargo box;
a second critical gear corresponding to a light load state or an empty load state of the cargo box,
wherein the first critical gear is lower than the second critical gear.
9. The cargo vehicle of claim 7, further comprising:
the prompting device is arranged on the vehicle body and used for outputting prompting information corresponding to the gear of the transmission, the prompting information is one or a combination of more of image prompting information, character prompting information, sound prompting information or indicating lamp prompting information,
the controller is electrically connected with the prompting device so as to control the working state of the prompting device according to the gear of the transmission, and when the starting instruction is received, if the gear is higher than the critical gear, the controller controls the prompting device to output the prompting information.
10. The cargo vehicle according to any one of claims 6 to 9,
the cargo vehicle is a dump truck; and/or
The controller is an engine controller of the cargo vehicle.
CN202010477874.1A 2020-05-29 2020-05-29 Vehicle starting control method and cargo vehicle Active CN111619368B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010477874.1A CN111619368B (en) 2020-05-29 2020-05-29 Vehicle starting control method and cargo vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010477874.1A CN111619368B (en) 2020-05-29 2020-05-29 Vehicle starting control method and cargo vehicle

Publications (2)

Publication Number Publication Date
CN111619368A true CN111619368A (en) 2020-09-04
CN111619368B CN111619368B (en) 2021-10-08

Family

ID=72268689

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010477874.1A Active CN111619368B (en) 2020-05-29 2020-05-29 Vehicle starting control method and cargo vehicle

Country Status (1)

Country Link
CN (1) CN111619368B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253230A (en) * 1985-04-30 1986-11-11 Mazda Motor Corp Electronically controlled speed change gear for automobile
EP0364276A2 (en) * 1988-10-14 1990-04-18 Diesel Kiki Co. Ltd. Apparatus for controlling gear transmission and clutch of vehicles
EP1644653A1 (en) * 2003-07-03 2006-04-12 Volvo Lastvagnar AB Method and arrangement for selecting a starting gear and a vehicle comprising this arrangement
JP2011093457A (en) * 2009-10-30 2011-05-12 Toyota Motor Corp Vehicle and control method thereof
CN102745190A (en) * 2011-04-20 2012-10-24 福特全球技术公司 Method and apparatus of operating a vehicle during take-off from rest
CN103115144A (en) * 2013-01-31 2013-05-22 浙江吉利汽车研究院有限公司杭州分公司 Control method for automobile gear choosing
CN103328865A (en) * 2010-12-15 2013-09-25 沃尔沃拉斯特瓦格纳公司 A method for selecting a starting gear
CN109357003A (en) * 2018-08-29 2019-02-19 汽解放汽车有限公司 A kind of commercial vehicle automatic mechanical transmission starting gear output control method
CN110553031A (en) * 2019-09-27 2019-12-10 南京汽车集团有限公司 starting gear selection and control method for light truck AMT (automated mechanical Transmission)

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253230A (en) * 1985-04-30 1986-11-11 Mazda Motor Corp Electronically controlled speed change gear for automobile
EP0364276A2 (en) * 1988-10-14 1990-04-18 Diesel Kiki Co. Ltd. Apparatus for controlling gear transmission and clutch of vehicles
EP1644653A1 (en) * 2003-07-03 2006-04-12 Volvo Lastvagnar AB Method and arrangement for selecting a starting gear and a vehicle comprising this arrangement
JP2011093457A (en) * 2009-10-30 2011-05-12 Toyota Motor Corp Vehicle and control method thereof
CN103328865A (en) * 2010-12-15 2013-09-25 沃尔沃拉斯特瓦格纳公司 A method for selecting a starting gear
CN102745190A (en) * 2011-04-20 2012-10-24 福特全球技术公司 Method and apparatus of operating a vehicle during take-off from rest
CN103115144A (en) * 2013-01-31 2013-05-22 浙江吉利汽车研究院有限公司杭州分公司 Control method for automobile gear choosing
CN109357003A (en) * 2018-08-29 2019-02-19 汽解放汽车有限公司 A kind of commercial vehicle automatic mechanical transmission starting gear output control method
CN110553031A (en) * 2019-09-27 2019-12-10 南京汽车集团有限公司 starting gear selection and control method for light truck AMT (automated mechanical Transmission)

Also Published As

Publication number Publication date
CN111619368B (en) 2021-10-08

Similar Documents

Publication Publication Date Title
US7549497B2 (en) Four-wheel drive vehicle running normally and with object towed thereby
KR20080091331A (en) Display device for cargo vehicles, and hybrid type cargo vehicle having the display device
EP2516194B1 (en) Method and system for controlling a vehicle cruise control
US10138818B2 (en) Internal combustion engine control system
US20080133077A1 (en) Industrial vehicle and power control method for the same
US8554399B2 (en) Method for operating a drive train
CN111267802B (en) Vehicle control method, vehicle control system and automobile
US20210370913A1 (en) Method for reinforcing vehicle safety on ramp and vehicle thereof
CN111619368B (en) Vehicle starting control method and cargo vehicle
KR20160079401A (en) Method for controlling operation point in regenerative brake of HEV
JP7302242B2 (en) hybrid vehicle
US10571015B2 (en) Shift control system for industrial vehicle
SE512461C2 (en) Method and apparatus for controlling an automated gearbox
WO2023131292A1 (en) Control method and apparatus for transmission of new energy vehicle, vehicle, and storage medium
US11440409B2 (en) Vehicle system and hybrid vehicle
KR20170076725A (en) Method and system for decelerating a vehicle
JP2008101680A (en) Shift control device for vehicle
JP3710265B2 (en) Vehicle start shock reduction device
CN113459969A (en) Pure electric instruction car and whole car control method thereof, whole car controller and storage medium
JPS61244927A (en) Clutch wear amount display device
CN217627456U (en) Automatic speed limiting device for forklift load
KR20180077670A (en) Apparatus and method for controlling shift change of hybrid vehicle
JP2023101265A (en) Shift control device
CN117386806A (en) Vehicle gear shift control method, device, equipment and storage medium
CN117141457A (en) Vehicle control method, device, storage medium and electronic equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant