CN108688467B - Motor vehicle speed limiting method and device, computer equipment and storage medium - Google Patents
Motor vehicle speed limiting method and device, computer equipment and storage medium Download PDFInfo
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- CN108688467B CN108688467B CN201810793101.7A CN201810793101A CN108688467B CN 108688467 B CN108688467 B CN 108688467B CN 201810793101 A CN201810793101 A CN 201810793101A CN 108688467 B CN108688467 B CN 108688467B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/0058—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator responsive to externally generated signalling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/18—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including a device to audibly, visibly, or otherwise signal the existence of unusual or unintended speed to the driver of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K2031/0091—Speed limiters or speed cutters
Abstract
The invention is suitable for the field of motor vehicles, and provides a motor vehicle speed limiting method, a motor vehicle speed limiting device, computer equipment and a storage medium, wherein the method comprises the following steps: acquiring a road speed limit value and a motor vehicle real-time speed value; comparing the real-time speed value of the motor vehicle with the road speed limit value, and judging whether the real-time speed value of the motor vehicle exceeds the road speed limit value or not; and when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, automatically reducing the speed of the motor vehicle to be within the road speed limit value. In the embodiment of the invention, the speed limit information of the road is obtained, so that the speed limit of the motor vehicle when the motor vehicle runs on the road is automatically realized, the overspeed caused by inertia overspeed and misoperation when the motor vehicle is driven is prevented, the condition that the motor vehicle is overspeed and violated rules and potential safety hazards caused by overspeed are reduced, and the user experience is better.
Description
Technical Field
The invention belongs to the field of motor vehicles, and particularly relates to a motor vehicle speed limiting method, a motor vehicle speed limiting device, computer equipment and a storage medium.
Background
A motor vehicle, i.e., a "motor vehicle", refers to a wheeled vehicle driven or towed by a power plant and traveling on a road for passengers, for transporting articles, and for performing work specific works.
Along with the improvement of living standard of people, the number of motor vehicles on roads is more and more, and the motor vehicles are already used as necessary transportation tools for people to go out. The speed limit requirements of different roads on the driving of the motor vehicle are different, so that the memory is difficult, and when a motor vehicle driver drives the motor vehicle on the road, the motor vehicle driver often cares about the speed limit sign on the road or the motor vehicle is overspeed due to poor driving habits, so that traffic violation or potential safety hazard is generated.
In summary, it is necessary to invent a speed-limiting method for a motor vehicle to automatically limit the maximum driving speed according to the speed-limiting requirement of the road when the motor vehicle is driven on the road, so as to solve the overspeed problem.
Disclosure of Invention
The embodiment of the invention provides a speed limiting method for a motor vehicle, aiming at solving the problems of inertia overspeed and careless overspeed when the existing motor vehicle runs on a road.
The embodiment of the invention provides a speed limiting method for a motor vehicle, which is characterized by comprising the following steps:
acquiring a road speed limit value and a motor vehicle real-time speed value;
comparing the real-time speed value of the motor vehicle with the road speed limit value, and judging whether the real-time speed value of the motor vehicle exceeds the road speed limit value or not;
and when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, automatically reducing the speed of the motor vehicle to be within the road speed limit value.
The embodiment of the invention provides a speed limiting device of a motor vehicle, which is characterized by comprising the following components:
the parameter acquisition unit is used for acquiring a road speed limit value and a motor vehicle real-time speed value;
the speed judging unit is used for comparing the real-time speed value of the motor vehicle with the road speed limit value and judging whether the real-time speed value of the motor vehicle exceeds the road speed limit value or not;
and the speed control unit is used for automatically reducing the speed of the motor vehicle to be within the road speed limit value when judging that the real-time speed value of the motor vehicle exceeds the road speed limit value.
A computer device comprising a processor for executing a computer program stored in a memory to implement the steps of the method according to any one of claims 1-3.
A computer-readable storage medium, on which a computer program (instructions) is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1-3.
In conclusion, by the motor vehicle speed limiting method, the road speed limiting information is obtained, the speed limitation of the motor vehicle when the motor vehicle runs on the road is automatically realized, the inertia overspeed and the careless overspeed of the motor vehicle when the motor vehicle is driven are prevented, the conditions that the motor vehicle is overspeed and violated rules and potential safety hazards caused by the overspeed are reduced, and the user experience is better.
Drawings
FIG. 1 is a flow chart of a method for limiting speed of a motor vehicle according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method for limiting speed of a motor vehicle according to an embodiment of the present invention;
FIG. 3 is a flow chart of another method for limiting speed of a motor vehicle according to an embodiment of the present invention;
FIG. 4 is a block diagram of a motor vehicle governor according to an embodiment of the present invention;
fig. 5 is a block diagram showing a structure of another speed limiter for a motor vehicle according to an embodiment of the present invention.
Fig. 6 is a block diagram showing a structure of another speed limiter for a motor vehicle according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention is applied to a motor vehicle speed control device, which comprises a device capable of acquiring road speed limit information and outputting throttle control signals.
FIG. 1 shows a flow chart of a method for limiting speed of a motor vehicle, which is suitable for use in an embodiment of the invention, the method comprising the steps of:
and step S101, acquiring a road speed limit value and a motor vehicle real-time speed value.
The method comprises the steps of obtaining a real-time speed value of the motor vehicle and a road speed limit value in driving according to the driving condition of the motor vehicle, wherein the speed limit value can be directly obtained from an existing navigation system, can also be obtained from mobile phone navigation software in a wireless mode, and can also be used for setting the speed limit value of a common route in advance, and the method for obtaining the real-time speed value and the road speed limit value is not the key point of the invention, so the method is not detailed and is not limited.
In the embodiment of the invention, the acquired road speed limit values comprise the highest speed limit value and the lowest speed limit value, and the lowest speed limit value of the road is acquired in consideration of different road speed limit requirements, particularly the requirement on the lowest speed of a running motor vehicle on a fast road or a highway section. For example, the highest speed limit of a certain high-speed road section is 120 km/h, and the lowest speed limit is 60 km/h, which indicates that the running speed of the motor vehicle needs to be controlled between 60 and 120 km/h.
And S102, comparing the real-time speed value of the motor vehicle with the road speed limit value, and judging whether the real-time speed value of the motor vehicle exceeds the road speed limit value.
In the embodiment of the invention, the real-time speed value of the motor vehicle is used for being compared with the road speed limit value during running to judge whether the motor vehicle is overspeed or not. If the real-time speed value of the motor vehicle exceeds the road speed limit value, the motor vehicle is overspeed, and the next step needs to be carried out.
Preferably, in order to prevent the motor vehicle from being detected by the road speed measuring device and being determined as overspeed violation without performing speed control before the motor vehicle speed excessively rises to the road speed limit value, a buffering speed may be additionally set on the basis of the road speed limit value, and when the motor vehicle speed rises to the buffering speed interval, prejudgment is performed in advance or next measures are taken. For example, when the speed limit value of a certain road is 120 km/h, the buffer speed is set to be 20 km/h, namely, the interval of 100 + 120 km/h is the speed limit control buffer interval, when the driving speed of the motor vehicle on the road reaches 100 km/h, the motor vehicle is predicted to possibly overspeed in advance, and possible overspeed reminding is output or further operation is taken in advance.
In the embodiment of the invention, when the lowest speed limit value requirement exists on the road, the real-time speed value of the motor vehicle is compared with the lowest speed limit value of the road in running, and whether the speed of the motor vehicle is too low is judged. If the real-time speed value of the motor vehicle is lower than the lowest speed limit value of the road, the motor vehicle is indicated to have too low speed, and the next step needs to be carried out.
Preferably, in order to prevent the motor vehicle from being detected by the road speed measuring device and being judged as a low-speed violation before speed control is carried out in order to prevent the motor vehicle from excessively fast reducing to the road speed minimum value, a buffering speed can be additionally set on the basis of the road minimum speed limit value, and when the motor vehicle speed reduces to the buffering speed interval, prejudgment is carried out in advance or next measures are taken. For example, when the speed limit value of a certain road is 60 km/h, the buffering speed is set to be 10 km/h, namely, the 60-70 km/h interval is the speed limit control buffering interval, when the running speed of the motor vehicle on the road is as low as 70 km/h, the motor vehicle is predicted in advance to possibly violate the low speed, and low speed prompt is output or further operation is taken in advance.
And step S103, when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, automatically reducing the speed of the motor vehicle to be within the road speed limit value.
In the embodiment of the invention, when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, measures are taken to reduce the speed of the motor vehicle in time, and the motor vehicle is limited to run within the range of the road speed limit value. Methods of reducing vehicle speed include, but are not limited to, control of a vehicle throttle.
Preferably, when the speed of the motor vehicle exceeds the speed limit value of the road, a prompt is sent to the driver, and the prompt mode can be a voice mode without limitation. For example, when the speed of the motor vehicle exceeds the maximum speed limit by 120 km/h, the driver is given "you have overspeed, please decelerate! "is voice-based.
When the road has the requirement of the lowest speed limit value, the driver can be reminded by referring to the reminding mode of the highest speed limit value. For example, when the speed of the motor vehicle is lower than the lowest speed limit by 60 km/h, the driver is sent a message that your speed is too low, please speed up! "is voice-based.
In conclusion, by the motor vehicle speed limiting method, the road speed limiting information is obtained, the speed limitation of the motor vehicle when the motor vehicle runs on the road is automatically realized, the inertia overspeed and the careless overspeed of the motor vehicle when the motor vehicle is driven are prevented, the conditions that the motor vehicle is overspeed and violated rules and potential safety hazards caused by the overspeed are reduced, and the user experience is better.
Fig. 2 shows a flow chart of another method for limiting speed of a motor vehicle, which is applicable to the embodiment of the invention, and compared with fig. 1, the method further comprises the following steps:
step S201, setting a real-time speed value of the motor vehicle and a throttle opening and closing condition control table.
In the embodiment of the invention, when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, the control on the speed of the motor vehicle can be realized by controlling the throttle valve of the motor vehicle, and in order to realize the control on the speed of the motor vehicle by the throttle valve, the real-time speed value of the motor vehicle and a throttle opening and closing condition control table are set, namely the correlation between the real-time speed of the motor vehicle and the maximum value of the opening and closing angle and the. When the speed of the motor vehicle is higher, setting the maximum value of the opening and closing angle of the throttle valve to be smaller, and setting the opening and closing speed to be slower so as to reduce the speed of the motor vehicle; when the speed of the motor vehicle is lower, the maximum value of the opening and closing angle of the throttle is set to be larger, the opening and closing speed is higher, and the speed increase of the motor vehicle at the low speed is not influenced. For example, when the maximum speed limit of a certain road is 120 km/h, the real-time speed value of the motor vehicle at a certain moment is 130 km/h, and the opening and closing angle of the throttle of the motor vehicle is 60 degrees at the moment, enough energy can be obtained by the motor vehicle to maintain the speed, when the maximum opening and closing angle of the throttle is limited to 50 degrees, the maximum energy quantity of the motor vehicle is reduced, the speed of the motor vehicle cannot be maintained at 130 km/h, and only 110 km/h can be maintained, so that the purpose of reducing the speed of the motor vehicle is achieved. The following table illustrates the correlation of vehicle real-time speed to the maximum opening and closing angle and opening and closing speed of the vehicle throttle. It should be noted that, in order to facilitate understanding of the relationship described in the present embodiment, the following table is merely an example, and is not a limitation of the present invention.
As another embodiment of the present invention, when the road has a limit to the lowest speed of the motor vehicle, and the real-time speed value of the motor vehicle is determined to be lower than the lowest speed limit value of the road, the control of the speed of the motor vehicle can be realized by controlling the throttle of the motor vehicle, and in order to realize the control of the speed of the motor vehicle by the throttle, a control table of the real-time speed value of the motor vehicle and the opening and closing condition of the throttle is set, that is, the correlation between the real-time speed of the motor vehicle. When the speed of the motor vehicle is lower, the maximum value of the opening and closing angle of the throttle valve is set to be larger, and the opening and closing speed is higher, so that the speed of the motor vehicle is improved. For example, the lowest speed limit of a certain road is 60 km/h, the real-time speed value of the motor vehicle at a certain moment is 50 km/h, and at the moment, the opening and closing angle of the throttle of the motor vehicle is 20 degrees, enough energy can be obtained to maintain the speed, when the maximum opening and closing angle of the throttle is limited to 30 degrees, the maximum energy quantity obtained by the motor vehicle is increased, and the speed can be increased to 70 km/h, so that the aim of increasing the speed of the motor vehicle is fulfilled.
In step S202, the opening and closing of the throttle valve are controlled according to the parameters in the control table.
And controlling the opening and closing of the throttle valve of the motor vehicle according to the parameters in the control list so as to achieve the purpose of controlling the speed of the motor vehicle, wherein the opening and closing of the throttle valve of the motor vehicle comprises but is not limited to the opening and closing angle and speed of the throttle valve. The speed and throttle control method may be as explained with reference to step 201.
In the embodiment of the invention, the aim of automatically controlling the speed of the motor vehicle is achieved by presetting a real-time speed value of the motor vehicle and a throttle opening and closing condition control table and controlling the opening and closing angle and speed of the throttle.
Fig. 3 shows a flow chart of another method for limiting speed of a motor vehicle, which is applicable to the embodiment of the invention, and compared with fig. 1, the method further comprises the following steps:
and S301, setting the highest speed limit value of the motor vehicle.
In the embodiment of the invention, the highest speed limit of the motor vehicle can be set to limit the highest speed of the motor vehicle, namely the highest speed of the motor vehicle can not exceed the highest speed limit. The high-speed running of the motor vehicle can bring about greater potential safety hazard, and for some novice drivers or girl drivers, the limitation of the maximum running speed of the motor vehicle is beneficial to reducing the driving risk of the motor vehicle. For example, when a driver trains and learns, the highest speed limit value of the motor vehicle can be set to be 20 km/h, so that the highest speed of the motor vehicle driven by a student can only reach 20 km/h, and the potential safety hazard caused by the fact that the student steps on the accelerator by mistake during driver training is greatly reduced.
And step S302, when the real-time speed value of the motor vehicle is judged to exceed the highest speed limit value, automatically reducing the speed of the motor vehicle to be within the highest speed limit value.
In the embodiment of the invention, the real-time speed of the motor vehicle needs to be compared with the highest speed limit value, and when the real-time speed value of the motor vehicle is judged to exceed the highest speed limit value, the speed of the motor vehicle is automatically reduced to be within the highest speed limit value. The method for reducing the speed of the motor vehicle to the maximum speed limit refers to steps 201 and 202.
The maximum speed limit of the motor vehicle set by the method can automatically control the maximum speed of the motor vehicle, and the motor vehicle is limited to operate within the maximum speed limit, so that the risk of high-speed operation of the motor vehicle caused by misoperation or inertial operation is reduced.
Fig. 4 is a block diagram showing a structure of a speed limiter for a motor vehicle applicable to an embodiment of the present invention, applied to a speed control apparatus for a motor vehicle, which includes a device capable of acquiring road speed limit information and outputting a throttle control signal, the apparatus including:
and the parameter acquiring unit 401 is configured to acquire a road speed limit value and a real-time speed value of a motor vehicle.
The method comprises the steps of obtaining a real-time speed value of the motor vehicle and a road speed limit value in driving according to the driving condition of the motor vehicle, wherein the speed limit value can be directly obtained from an existing navigation system, can also be obtained from mobile phone navigation software in a wireless mode, and can also be used for setting the speed limit value of a common route in advance, and the method for obtaining the real-time speed value and the road speed limit value is not the key point of the invention, so the method is not detailed and is not limited.
In the embodiment of the invention, the acquired road speed limit values comprise the highest speed limit value and the lowest speed limit value, and the lowest speed limit value of the road is acquired in consideration of different road speed limit requirements, particularly the requirement on the lowest speed of a running motor vehicle on a fast road or a highway section. For example, the highest speed limit of a certain high-speed road section is 120 km/h, and the lowest speed limit is 60 km/h, which indicates that the running speed of the motor vehicle needs to be controlled between 60 and 120 km/h.
The speed determination unit 402 is configured to compare the real-time speed value of the motor vehicle with the road speed limit value, and determine whether the real-time speed value of the motor vehicle exceeds the road speed limit value.
In the embodiment of the invention, the real-time speed value of the motor vehicle is used for being compared with the road speed limit value during running to judge whether the motor vehicle is overspeed or not. If the real-time speed value of the motor vehicle exceeds the road speed limit value, the motor vehicle is overspeed, and the next step needs to be carried out.
Preferably, in order to prevent the motor vehicle from being detected by the road speed measuring device and being determined as overspeed violation without performing speed control before the motor vehicle speed excessively rises to the road speed limit value, a buffering speed may be additionally set on the basis of the road speed limit value, and when the motor vehicle speed rises to the buffering speed interval, prejudgment is performed in advance or next measures are taken. For example, when the speed limit value of a certain road is 120 km/h, the buffer speed is set to be 20 km/h, namely, the interval of 100 + 120 km/h is the speed limit control buffer interval, when the driving speed of the motor vehicle on the road reaches 100 km/h, the motor vehicle is predicted to possibly overspeed in advance, and possible overspeed reminding is output or further operation is taken in advance.
In the embodiment of the invention, when the lowest speed limit value requirement exists on the road, the real-time speed value of the motor vehicle is compared with the lowest speed limit value of the road in running, and whether the speed of the motor vehicle is too low is judged. If the real-time speed value of the motor vehicle is lower than the lowest speed limit value of the road, the motor vehicle is indicated to have too low speed, and the next step needs to be carried out.
Preferably, in order to prevent the motor vehicle from being detected by the road speed measuring device and being judged as a low-speed violation before speed control is carried out in order to prevent the motor vehicle from excessively fast reducing to the road speed minimum value, a buffering speed can be additionally set on the basis of the road minimum speed limit value, and when the motor vehicle speed reduces to the buffering speed interval, prejudgment is carried out in advance or next measures are taken. For example, when the speed limit value of a certain road is 60 km/h, the buffering speed is set to be 10 km/h, namely, the 60-70 km/h interval is the speed limit control buffering interval, when the running speed of the motor vehicle on the road is as low as 70 km/h, the motor vehicle is predicted in advance to possibly violate the low speed, and low speed prompt is output or further operation is taken in advance.
And the speed control unit 403 is configured to, when it is determined that the real-time speed value of the motor vehicle exceeds the road speed limit value, automatically reduce the speed of the motor vehicle to be within the road speed limit value.
In the embodiment of the invention, when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, measures are taken to reduce the speed of the motor vehicle in time, and the motor vehicle is limited to run within the range of the road speed limit value. Methods of reducing vehicle speed include, but are not limited to, control of a vehicle throttle.
Preferably, when the speed of the motor vehicle exceeds the speed limit value of the road, a prompt is sent to the driver, and the prompt mode can be a voice mode without limitation. For example, when the speed of the motor vehicle exceeds the maximum speed limit by 120 km/h, the driver is given "you have overspeed, please decelerate! "is voice-based.
When the road has the requirement of the lowest speed limit value, the driver can be reminded by referring to the reminding mode of the highest speed limit value. For example, when the speed of the motor vehicle is lower than the lowest speed limit by 60 km/h, the driver is sent a message that your speed is too low, please speed up! "is voice-based.
In conclusion, by the motor vehicle speed limiting method, the road speed limiting information is obtained, the speed limitation of the motor vehicle when the motor vehicle runs on the road is automatically realized, the inertia overspeed and the careless overspeed of the motor vehicle when the motor vehicle is driven are prevented, the conditions that the motor vehicle is overspeed and violated rules and potential safety hazards caused by the overspeed are reduced, and the user experience is better.
Fig. 5 is a block diagram showing the construction of still another speed limiter for motor vehicles applicable to the embodiment of the present invention, the road speed control unit comprising:
the control table setting module 501 is used for setting a motor vehicle real-time speed value and a throttle valve opening and closing condition control table.
In the embodiment of the invention, when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, the control on the speed of the motor vehicle can be realized by controlling the throttle valve of the motor vehicle, and in order to realize the control on the speed of the motor vehicle by the throttle valve, the real-time speed value of the motor vehicle and a throttle opening and closing condition control table are set, namely the correlation between the real-time speed of the motor vehicle and the maximum value of the opening and closing angle and the. When the speed of the motor vehicle is higher, setting the maximum value of the opening and closing angle of the throttle valve to be smaller, and setting the opening and closing speed to be slower so as to reduce the speed of the motor vehicle; when the speed of the motor vehicle is lower, the maximum value of the opening and closing angle of the throttle is set to be larger, the opening and closing speed is higher, and the speed increase of the motor vehicle at the low speed is not influenced. For example, when the maximum speed limit of a certain road is 120 km/h, the real-time speed value of the motor vehicle at a certain moment is 130 km/h, and the opening and closing angle of the throttle of the motor vehicle is 60 degrees at the moment, enough energy can be obtained by the motor vehicle to maintain the speed, when the maximum opening and closing angle of the throttle is limited to 50 degrees, the maximum energy quantity of the motor vehicle is reduced, the speed of the motor vehicle cannot be maintained at 130 km/h, and only 110 km/h can be maintained, so that the purpose of reducing the speed of the motor vehicle is achieved. The following table illustrates the correlation of vehicle real-time speed to the maximum opening and closing angle and opening and closing speed of the vehicle throttle. It should be noted that, in order to facilitate understanding of the relationship described in the present embodiment, the following table is merely an example, and is not a limitation of the present invention.
As another embodiment of the present invention, when the road has a limit to the lowest speed of the motor vehicle, and the real-time speed value of the motor vehicle is determined to be lower than the lowest speed limit value of the road, the control of the speed of the motor vehicle can be realized by controlling the throttle of the motor vehicle, and in order to realize the control of the speed of the motor vehicle by the throttle, a control table of the real-time speed value of the motor vehicle and the opening and closing condition of the throttle is set, that is, the correlation between the real-time speed of the motor vehicle. When the speed of the motor vehicle is lower, the maximum value of the opening and closing angle of the throttle valve is set to be larger, and the opening and closing speed is higher, so that the speed of the motor vehicle is improved. For example, the lowest speed limit of a certain road is 60 km/h, the real-time speed value of the motor vehicle at a certain moment is 50 km/h, and at the moment, the opening and closing angle of the throttle of the motor vehicle is 20 degrees, enough energy can be obtained to maintain the speed, when the maximum opening and closing angle of the throttle is limited to 30 degrees, the maximum energy quantity obtained by the motor vehicle is increased, and the speed can be increased to 70 km/h, so that the aim of increasing the speed of the motor vehicle is fulfilled.
And a throttle control module 502 for controlling the opening and closing of the throttle according to the parameters in the control table.
And controlling the opening and closing of the throttle valve of the motor vehicle according to the parameters in the control list so as to achieve the purpose of controlling the speed of the motor vehicle, wherein the opening and closing of the throttle valve of the motor vehicle comprises but is not limited to the opening and closing angle and speed of the throttle valve. The speed and throttle control method may be as explained with reference to step 201.
In the embodiment of the invention, the aim of automatically controlling the speed of the motor vehicle is achieved by presetting a real-time speed value of the motor vehicle and a throttle opening and closing condition control table and controlling the opening and closing angle and speed of the throttle.
Fig. 6 is a block diagram showing a structure of still another speed limiter for a motor vehicle according to an embodiment of the present invention, which further includes, in comparison with fig. 4:
and a maximum speed setting unit 601, configured to set a maximum speed limit of the vehicle.
In the embodiment of the invention, the highest speed limit of the motor vehicle can be set to limit the highest speed of the motor vehicle, namely the highest speed of the motor vehicle can not exceed the highest speed limit. The high-speed running of the motor vehicle can bring about greater potential safety hazard, and for some novice drivers or girl drivers, the limitation of the maximum running speed of the motor vehicle is beneficial to reducing the driving risk of the motor vehicle. For example, when a driver trains and learns, the highest speed limit value of the motor vehicle can be set to be 20 km/h, so that the highest speed of the motor vehicle driven by a student can only reach 20 km/h, and the potential safety hazard caused by the fact that the student steps on the accelerator by mistake during driver training is greatly reduced.
And the maximum speed control unit 602 is configured to automatically reduce the speed of the motor vehicle to be within the maximum speed limit value when it is determined that the real-time speed value of the motor vehicle exceeds the maximum speed limit value.
In the embodiment of the invention, the real-time speed of the motor vehicle needs to be compared with the highest speed limit value, and when the real-time speed value of the motor vehicle is judged to exceed the highest speed limit value, the speed of the motor vehicle is automatically reduced to be within the highest speed limit value. The method for reducing the speed of the motor vehicle to the maximum speed limit refers to steps 201 and 202.
The maximum speed limit of the motor vehicle set by the method can automatically control the maximum speed of the motor vehicle, and the motor vehicle is limited to operate within the maximum speed limit, so that the risk of high-speed operation of the motor vehicle caused by misoperation or inertial operation is reduced.
In one embodiment, a computer device is proposed, which comprises a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of any of the methods of the invention.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, causes the processor to perform the steps of any of the methods of the invention.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A method of limiting speed in a motor vehicle, the method comprising:
acquiring a road speed limit value and a motor vehicle real-time speed value;
comparing the real-time speed value of the motor vehicle with the road speed limit value, and judging whether the real-time speed value of the motor vehicle exceeds the road speed limit value or not;
when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, automatically reducing the speed of the motor vehicle to be within the road speed limit value;
the step of automatically reducing the speed of the motor vehicle to be within the road speed limit value specifically comprises the following steps:
setting a motor vehicle real-time speed value and a throttle opening and closing condition control table;
controlling the opening and closing of the throttle according to the parameters in the control table;
the setting of the motor vehicle real-time speed value and the throttle opening and closing condition control table specifically comprises the following steps:
setting the correlation between the real-time speed of the motor vehicle and the maximum value of the opening and closing angle and the opening and closing speed of the throttle valve; when the speed of the motor vehicle is higher, setting the maximum value of the opening and closing angle of the throttle valve to be smaller, and setting the opening and closing speed to be slower so as to reduce the speed of the motor vehicle; when the speed of the motor vehicle is lower, the maximum value of the opening and closing angle of the throttle valve is set to be larger, and the opening and closing speed is higher, so that the speed of the motor vehicle is improved.
2. The method for limiting speed of a motor vehicle of claim 1,
the method comprises the following steps of comparing the real-time speed value of the motor vehicle with the road speed limit value, and judging whether the real-time speed value of the motor vehicle exceeds the road speed limit value, wherein the method specifically comprises the following steps:
comparing the real-time speed value of the motor vehicle with the road speed limit buffer interval, and judging whether the real-time speed value of the motor vehicle falls into the road speed limit buffer interval;
when the real-time speed value of the motor vehicle is judged to exceed the road speed limit value, the speed of the motor vehicle is automatically reduced to be within the road speed limit value, and the method specifically comprises the following steps:
and when the real-time speed value of the motor vehicle is judged to fall into the road speed limit buffer zone, automatically reducing the speed of the motor vehicle to be within the road speed limit value.
3. The method for speed limiting of a motor vehicle of claim 1, further comprising:
setting the highest speed limit value of the motor vehicle;
and when the real-time speed value of the motor vehicle is judged to exceed the highest speed limit value, automatically reducing the speed of the motor vehicle to be within the highest speed limit value.
4. A motor vehicle governor apparatus, the apparatus comprising:
the parameter acquisition unit is used for acquiring a road speed limit value and a motor vehicle real-time speed value;
the speed judging unit is used for comparing the real-time speed value of the motor vehicle with the road speed limit value and judging whether the real-time speed value of the motor vehicle exceeds the road speed limit value or not;
the speed control unit is used for automatically reducing the speed of the motor vehicle to be within the road speed limit value when judging that the real-time speed value of the motor vehicle exceeds the road speed limit value;
the road speed control unit includes:
the control table setting module is used for setting a motor vehicle real-time speed value and a throttle opening and closing condition control table;
the throttle valve control module is used for controlling the opening and closing of the throttle valve according to the parameters in the control table;
the setting of the motor vehicle real-time speed value and the throttle opening and closing condition control table specifically comprises the following steps:
the association of the real-time speed of the motor vehicle, the maximum opening and closing angle of the throttle valve and the opening and closing speed is set; when the speed of the motor vehicle is higher, setting the maximum value of the opening and closing angle of the throttle valve to be smaller, and setting the opening and closing speed to be slower so as to reduce the speed of the motor vehicle; when the speed of the motor vehicle is lower, the maximum value of the opening and closing angle of the throttle valve is set to be larger, and the opening and closing speed is higher, so that the speed of the motor vehicle is improved.
5. The motor vehicle speed limiter according to claim 4,
the speed judging unit is used for comparing the real-time speed value of the motor vehicle with the road speed limit buffer interval and judging whether the real-time speed value of the motor vehicle falls into the road speed limit buffer interval;
and the speed control unit is used for automatically reducing the speed of the motor vehicle to be within the road speed limit value when judging that the real-time speed value of the motor vehicle falls into the road speed limit buffer zone.
6. The motor vehicle speed limiter arrangement of claim 4 further comprising:
the maximum speed setting unit is used for setting the maximum speed limit value of the motor vehicle;
and the highest speed control unit is used for automatically reducing the speed of the motor vehicle to be within the highest speed limit value when the real-time speed value of the motor vehicle is judged to exceed the highest speed limit value.
7. A computer device comprising a processor for executing a computer program stored in a memory to implement the steps of the method according to any one of claims 1 to 4.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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| CN201810793101.7A CN108688467B (en) | 2018-07-18 | 2018-07-18 | Motor vehicle speed limiting method and device, computer equipment and storage medium |
| CN202010658848.9A CN111823862B (en) | 2018-07-18 | 2018-07-18 | Motor vehicle speed limiting method and device, computer equipment and storage medium |
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| CN201810793101.7A CN108688467B (en) | 2018-07-18 | 2018-07-18 | Motor vehicle speed limiting method and device, computer equipment and storage medium |
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| CN109849664B (en) * | 2019-03-25 | 2021-09-28 | 奇瑞汽车股份有限公司 | Vehicle speed limiting method, vehicle speed limiting device and computer readable storage medium |
| CN111114317B (en) * | 2019-12-30 | 2022-04-22 | 上海移为通信技术股份有限公司 | Vehicle speed control method, device and equipment |
| CN111071299B (en) * | 2020-01-02 | 2021-10-08 | 中车青岛四方车辆研究所有限公司 | Overspeed protection control method for train network control system |
| CN112435482B (en) * | 2020-11-06 | 2022-06-14 | 福瑞泰克智能系统有限公司 | Parking control method and system in automatic driving mode, electronic equipment and vehicle |
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| CN111823862A (en) | 2020-10-27 |
| CN111823862B (en) | 2022-11-15 |
| CN108688467A (en) | 2018-10-23 |
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