CN116670487A - Method and device for calculating opening degree of accelerator pedal, whole vehicle controller and vehicle - Google Patents
Method and device for calculating opening degree of accelerator pedal, whole vehicle controller and vehicle Download PDFInfo
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- CN116670487A CN116670487A CN202180053784.2A CN202180053784A CN116670487A CN 116670487 A CN116670487 A CN 116670487A CN 202180053784 A CN202180053784 A CN 202180053784A CN 116670487 A CN116670487 A CN 116670487A
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Abstract
According to the method and device for calculating the opening degree of the accelerator pedal, the whole vehicle controller and the vehicle, provided by the embodiment of the application, whether the interference factor to the accelerator pedal exists is detected when the vehicle is in a stationary state, then if the interference factor to the accelerator pedal does not exist, the zero voltage of the accelerator pedal is detected, the zero voltage is stored, and finally, when the vehicle is in a moving state, the opening degree of the accelerator pedal is calculated according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal. The method and the device for calculating the opening degree of the accelerator pedal, the whole vehicle controller and the vehicle are used for improving the accuracy of the opening degree of the accelerator pedal when the opening degree of the accelerator pedal is calculated according to the embodiment of the application because the opening degree of the accelerator pedal is calculated by acquiring the zero voltage of the accelerator pedal when the vehicle is in a stationary state and no interference factors to the accelerator pedal exist.
Description
The application relates to the technical field of vehicle control, in particular to a method and a device for calculating the opening degree of an accelerator pedal, a whole vehicle controller and a vehicle.
The driving torque input of the vehicle comes from an accelerator pedal, and the opening degree of the accelerator pedal directly influences the driving feeling and safety of a driver. The accelerator pedal opening is usually obtained through the accelerator pedal voltage, but the voltage signal of the accelerator pedal is easy to cause problems such as zero drift, so that the accelerator pedal opening obtained by vehicle analysis is not the opening actually expected by a driver, and therefore, the accurate accelerator pedal opening is of great significance.
Disclosure of Invention
The technical problem solved by the embodiment of the application is how to improve the accuracy of the opening degree of the accelerator pedal.
In a first aspect, an embodiment of the present application provides a method for calculating an opening degree of an accelerator pedal, where the method includes: detecting whether an interference factor on an accelerator pedal exists when the vehicle is in a stationary state; if no interference factor exists on the accelerator pedal, detecting zero voltage of the accelerator pedal and storing the zero voltage; and when the vehicle is in a motion state, calculating the opening of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal.
In some embodiments, the detecting whether there is an interfering factor with the accelerator pedal comprises: detecting whether the vehicle currently meets a preset condition, if so, determining that no interference factor exists on the accelerator pedal; otherwise, determining that an interference factor to the accelerator pedal exists; the preset conditions include one or more of the following: the driver's seat of the vehicle is free of a driver; the change rate of the voltage of the accelerator pedal in unit time of the vehicle is smaller than a first threshold value; and the difference between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is smaller than a second threshold value.
In some embodiments, the calculating the opening of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal includes: acquiring theoretical voltage parameters corresponding to the accelerator pedal, wherein the theoretical voltage parameters comprise a first voltage detected in real time in a vehicle motion state, a theoretical power supply voltage of the vehicle, a theoretical working voltage range and an actual working voltage range; and calculating the opening degree of the accelerator pedal according to the zero voltage, the first voltage, the theoretical power supply voltage of the vehicle, the theoretical working voltage range and the actual working voltage range.
In some embodiments, the stationary state comprises a charging state or a smart replenishment working state.
In some embodiments, the method further comprises: and detecting a real-time voltage of the accelerator pedal and updating the stored zero voltage according to the real-time voltage under the condition that the vehicle is detected to be in a static state and no interference factor to the accelerator pedal exists currently.
In a second aspect, an embodiment of the present application provides an opening degree calculating device for an accelerator pedal, including: the first detection module is used for detecting whether an interference factor on an accelerator pedal exists when the vehicle is in a stationary state; the second detection module is used for detecting zero voltage of the accelerator pedal and storing the zero voltage if no interference factors exist on the accelerator pedal; and the calculation module is used for calculating the opening of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal when the vehicle is in a motion state.
In some embodiments, the first detection module is specifically configured to: when a vehicle is in a stationary state, detecting whether the vehicle currently meets a preset condition, and if so, determining that no interference factor on the accelerator pedal exists; otherwise, determining that an interference factor to the accelerator pedal exists; the preset conditions include one or more of the following: the driver's seat of the vehicle is free of a driver; the change rate of the voltage of the accelerator pedal in unit time of the vehicle is smaller than a first threshold value; and the difference between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is smaller than a second threshold value.
In some embodiments, the computing module is specifically configured to: when the vehicle is in a motion state, acquiring theoretical voltage parameters corresponding to the accelerator pedal, wherein the theoretical voltage parameters comprise a first voltage detected in real time in the motion state of the vehicle, a theoretical power supply voltage of the vehicle, a theoretical working voltage range and an actual working voltage range; and calculating the opening degree of the accelerator pedal according to the zero voltage, the first voltage, the theoretical power supply voltage of the vehicle, the theoretical working voltage range and the actual working voltage range.
In some embodiments, the apparatus further comprises: and the self-learning module is used for detecting the real-time voltage of the accelerator pedal and updating the stored zero voltage according to the real-time voltage under the condition that the vehicle is detected to be in a static state and no interference factor on the accelerator pedal exists currently.
In a third aspect, an embodiment of the present application provides a vehicle controller, including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the whole vehicle controller can implement the method for calculating the opening degree of the accelerator pedal.
In a fourth aspect, an embodiment of the present application provides a vehicle, including a vehicle controller as described above.
Different from the situation of the related art, the method, the device, the whole vehicle controller and the vehicle for calculating the opening degree of the accelerator pedal provided by the embodiment of the application are used for detecting whether the interference factor to the accelerator pedal exists or not when the vehicle is in a static state, then detecting the zero voltage of the accelerator pedal if the interference factor to the accelerator pedal does not exist, storing the zero voltage, and finally calculating the opening degree of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal when the vehicle is in a moving state. The method and the device for calculating the opening degree of the accelerator pedal, the whole vehicle controller and the vehicle are used for improving the accuracy of the opening degree of the accelerator pedal when the opening degree of the accelerator pedal is calculated according to the embodiment of the application because the opening degree of the accelerator pedal is calculated by acquiring the zero voltage of the accelerator pedal when the vehicle is in a stationary state and no interference factors to the accelerator pedal exist.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to scale, unless expressly stated otherwise.
Fig. 1 is a schematic flow chart of a method for calculating an opening degree of an accelerator pedal according to an embodiment of the present application;
FIG. 2 is a flow chart of a method for calculating an opening of an accelerator pedal according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an opening calculating device of an accelerator pedal according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of another device for calculating the opening degree of an accelerator pedal according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a vehicle controller according to an embodiment of the present application.
The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the application in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present application.
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It should be noted that, if not in conflict, the features of the embodiments of the present application may be combined with each other, which is within the protection scope of the present application. In addition, while functional block division is performed in a device diagram and logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. Moreover, the words "first," "second," "third," and the like as used herein do not limit the data and order of execution, but merely distinguish between identical or similar items that have substantially the same function and effect.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
In addition, the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other.
In order to solve the problem that the voltage signal of the accelerator pedal is easy to drift due to zero drift and the like, so that the accelerator pedal opening obtained by vehicle analysis is not the opening actually expected by a driver, the embodiment of the application provides an accelerator pedal opening calculating method, which is applied to a whole vehicle controller (Vehicle Control Unit, VCU), and referring to fig. 1, fig. 1 is a flow diagram of an accelerator pedal opening calculating method provided by the embodiment of the application. As shown in fig. 1, the method for calculating the opening degree of the accelerator pedal includes:
and S1, detecting whether an interference factor on an accelerator pedal exists when the vehicle is in a stationary state.
Wherein, the static state comprises a charging state or an intelligent power supplementing state. The intelligent power supplementing working state is that when the whole vehicle is in high-voltage dormancy, a BCM (body control module ) monitors the feeding degree of a storage battery in real time, when the feeding degree of the storage battery reaches a preset threshold value, the BCM wakes up a VCU and a BMS (battery management system), controls the high voltage on the whole vehicle, and then enables a DC/DC converter to charge the storage battery.
As an alternative embodiment, the VCU in the present application may collect the real-time voltage of the accelerator pedal at intervals of a preset time, for example, 0.01 seconds.
In the embodiment of the application, whether the interference factor to the accelerator pedal exists or not needs to be detected, and if the interference factor to the accelerator does not exist, the zero voltage of the accelerator pedal can be detected. If the interference factors to the accelerator exist, the zero voltage of the accelerator pedal cannot be detected, and the zero voltage of the accelerator pedal is detected after waiting for the interference factors to the accelerator pedal not exist.
When the zero voltage of the accelerator pedal is detected, interference factors on the accelerator pedal may exist, so that the calculated opening error of the accelerator pedal is larger, and erroneous judgment is easy to occur. The method for calculating the opening degree of the accelerator pedal detects the interference factors of the accelerator pedal, and ensures that the zero voltage of the accelerator pedal is detected under the condition that the interference factors of the accelerator pedal are not existed, so that the accuracy of detecting the zero voltage of the accelerator pedal is improved.
In some embodiments, detecting whether there is an interfering factor with the accelerator pedal includes: detecting whether the vehicle currently meets a preset condition, if so, determining that no interference factor to an accelerator pedal exists; otherwise, determining that the interference factor to the accelerator pedal exists. Wherein the preset conditions include one or more of the following:
the driver's seat of the vehicle has no driver;
the change rate of the accelerator pedal voltage per unit time of the vehicle is smaller than a first threshold value; and
the difference between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is less than a second threshold.
In the embodiment of the application, the interference factors to the accelerator pedal comprise artificial interference factors and foreign object interference factors.
Wherein, whether the driver exists in the driver seat of the vehicle can be judged through the pressure sensor of the seat or the camera in the vehicle in an auxiliary way. If the driver is in the driver seat of the vehicle, judging whether the driver is in the driver seat of the vehicle again through the pressure sensor of the seat or the camera in the vehicle in an auxiliary manner until the driver is not in the driver seat of the vehicle. If the driver is not present in the driver's seat of the vehicle, the influence of the driver on the accelerator pedal can be eliminated.
And after eliminating the influence of the driver on the accelerator pedal, judging whether the change rate of the accelerator pedal voltage in unit time of the vehicle is smaller than a first threshold value, wherein the change rate of the accelerator pedal voltage in unit time is a value obtained by dividing the single accelerator opening in unit time. The first threshold may be manually set or may be obtained from a network or other means. If the voltage change rate of the accelerator pedal in the unit time of the vehicle is greater than or equal to the first threshold value, the human interference factor to the accelerator pedal is considered to exist, and the voltage change rate of the accelerator pedal in the unit time is acquired again until the human interference factor to the accelerator pedal does not exist. If the change rate of the voltage of the accelerator pedal in unit time of the vehicle is smaller than the first threshold value, the artificial interference factor on the accelerator pedal is considered to be absent. Human interference factors to the accelerator pedal are eliminated. The step is combined with the step of judging whether the driver exists in the driver seat of the vehicle, so that the artificial interference factor on the accelerator pedal can be eliminated.
When the artificial interference factor to the accelerator pedal is eliminated, the foreign object interference factor to the accelerator pedal, such as the case that the foreign object presses the accelerator pedal, needs to be eliminated. Whether a foreign object interference factor to the accelerator pedal exists can be judged by judging whether the difference value between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is smaller than a second threshold value. The second threshold may be manually set or may be obtained from a network or other means. The pre-stored accelerator pedal voltage may be an accelerator pedal voltage pre-stored in an EEPROM (Electrically Erasable Programmable read only memory, electrically-charged erasable programmable read-only memory) of the vehicle. If the difference value between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is larger than or equal to a second threshold value, the foreign object interference factor to the accelerator pedal is considered to exist, and the current accelerator pedal voltage of the vehicle is acquired again until the foreign object interference factor to the accelerator pedal does not exist. If the difference value between the current accelerator pedal voltage and the pre-stored accelerator pedal voltage of the vehicle is smaller than a second threshold value, the foreign object interference factor on the accelerator pedal is considered to be absent. The step can eliminate foreign object interference factors on the accelerator pedal, such as the situation that the foreign object presses the accelerator pedal.
And S2, if no interference factor exists on the accelerator pedal, detecting the zero voltage of the accelerator pedal and storing the zero voltage.
When the interference factors to the accelerator pedal are eliminated, the current accelerator pedal voltage is used as the zero voltage of the accelerator pedal.
For example, an accelerator pedal typically has two accelerator signals coupled to the VCU, which can be converted to a voltage of the accelerator pedal by an AD sample of the two accelerator signals, which can then be converted to an opening of the accelerator pedal. During operation of the vehicle, the ECU (Electronic Control Unit ) supplies a power supply voltage, normally 5V, to the accelerator pedal sensor via power supply line 1 and power supply line 2. When the position of the accelerator pedal changes, the accelerator pedal sensor converts the pedal position signal into a voltage analog signal, namely into an accelerator signal voltage value, and then outputs an accelerator signal to the VCU through the signal line 1 and the signal line 2. When the position of the accelerator pedal changes, the corresponding resistance value of the output end changes, so that the voltage value of the output accelerator signal changes, and the current accelerator pedal opening can be obtained according to the accelerator information voltage value. The accelerator pedal opening is in a linear relationship with the output accelerator signal voltage value, and the accelerator pedal opening can be calculated by the linear relationship. And S3, calculating the opening degree of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal when the vehicle is in a motion state.
According to the method for calculating the opening of the accelerator pedal, provided by the embodiment of the application, whether the interference factor to the accelerator pedal exists is detected when the vehicle is in a stationary state, then if the interference factor to the accelerator pedal does not exist, the zero voltage of the accelerator pedal is detected, the zero voltage is stored, and finally, when the vehicle is in a moving state, the opening of the accelerator pedal is calculated according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal. The method for calculating the opening of the accelerator pedal improves the accuracy of the opening of the accelerator pedal when the opening of the accelerator pedal is calculated according to the method for calculating the opening of the accelerator pedal, because the opening of the accelerator pedal is calculated by acquiring the zero voltage of the accelerator pedal when the vehicle is in a stationary state and no interference factors to the accelerator pedal exist.
In some embodiments, referring to fig. 2, fig. 2 is a flowchart of a method for calculating an opening degree of an accelerator pedal according to an embodiment of the present application.
In some embodiments, calculating the opening of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal includes:
step S31, acquiring theoretical voltage parameters corresponding to an accelerator pedal, wherein the theoretical voltage parameters comprise a first voltage detected in real time under a vehicle motion state, a theoretical power supply voltage of the vehicle, a theoretical working voltage range and an actual working voltage range.
The first voltage detected in real time under the vehicle motion state is the voltage of an accelerator pedal detected in real time by the VCU in the use process of a user.
In some embodiments, the theoretical supply voltage of the vehicle is 5V, the theoretical operating voltage range is 5V, and the actual operating voltage range is a voltage interval in which the accelerator pedal varies linearly. It should be noted that the embodiments of the present disclosure are not limited to the theoretical power supply voltage, the theoretical operating voltage range, and the actual operating voltage range of the vehicle, and any existing or future implementation may be applied to one or more embodiments provided in the present disclosure.
And step S32, calculating the opening degree of the accelerator pedal according to the zero voltage, the first voltage, the theoretical power supply voltage, the theoretical working voltage range and the actual working voltage range of the vehicle.
Wherein, the opening degree of the accelerator pedal is calculated by the following formula:
wherein a is the opening degree of an accelerator pedal, c is a first voltage, d is zero-position voltage, e is theoretical power supply voltage of the vehicle, f is a theoretical working voltage range, and g is an actual working voltage range.
For example, the theoretical operating voltage range is 0 to 10V, f is 10V, the actual operating voltage range is 2 to 8V, g is 6V, c is the first voltage 2V, d is the zero voltage 0.02V, e is the theoretical power supply voltage of the vehicle 2.4V, anda was calculated to be 1.375.
In some embodiments, the method for calculating the opening degree of the accelerator pedal further includes:
and detecting the real-time voltage of the accelerator pedal and updating the stored zero voltage according to the real-time voltage under the condition that the vehicle is detected to be in a stationary state and no interference factor to the accelerator pedal exists currently.
Wherein the zero voltage of the accelerator pedal can be stored in an EEPROM of the vehicle.
In the embodiment of the application, under the condition that the vehicle is detected to be in a static state and no interference factor to the accelerator pedal exists currently, the real-time voltage of the accelerator pedal is detected, and is stored as the zero voltage of the accelerator pedal, so that the more accurate zero voltage of the accelerator pedal is provided for the next calculation of the opening of the accelerator pedal, and the accuracy and the efficiency of the next calculation of the opening of the accelerator pedal are improved.
According to the method for calculating the opening of the accelerator pedal, provided by the embodiment of the application, whether the interference factor to the accelerator pedal exists is detected when the vehicle is in a stationary state, then if the interference factor to the accelerator pedal does not exist, the zero voltage of the accelerator pedal is detected, the zero voltage is stored, and finally, when the vehicle is in a moving state, the opening of the accelerator pedal is calculated according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal. The method for calculating the opening of the accelerator pedal improves the accuracy of the opening of the accelerator pedal when the opening of the accelerator pedal is calculated according to the method for calculating the opening of the accelerator pedal, because the opening of the accelerator pedal is calculated by acquiring the zero voltage of the accelerator pedal when the vehicle is in a stationary state and no interference factors to the accelerator pedal exist. In addition, by the method that the driver does not exist in the driver seat of the vehicle, the change rate of the accelerator pedal voltage in unit time of the vehicle is smaller than a first threshold value, and the difference value between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is smaller than a second threshold value, after the fact that interference factors on the accelerator pedal do not exist is determined, the obtained zero voltage of the accelerator pedal is more accurate, the calculated opening degree of the accelerator pedal is more accurate, the problem that the opening degree of the accelerator pedal is inaccurate due to zero drift is solved, the torque calculation strategy of the whole vehicle can be carried out based on the correct opening degree of the accelerator pedal, and reliability and safety in the using process of the whole vehicle are improved.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an opening calculating device of an accelerator pedal according to an embodiment of the application. As shown in fig. 3, the accelerator pedal opening degree calculating device 10 includes: a first detection module 11, a second detection module 12 and a calculation module 13.
The first detection module 11 is configured to detect whether an interference factor on an accelerator pedal exists when the vehicle is in a stationary state.
The second detection module 12 is configured to detect a zero voltage of the accelerator pedal and store the zero voltage if there is no interference factor on the accelerator pedal.
The calculating module 13 is configured to calculate an opening degree of the accelerator pedal according to the zero voltage and a theoretical voltage parameter corresponding to the accelerator pedal when the vehicle is in a motion state.
In some embodiments, the first detection module 11 is specifically configured to:
when the vehicle is in a stationary state, detecting whether the vehicle currently meets a preset condition, and if so, determining that no interference factor on an accelerator pedal exists; otherwise, determining that an interference factor to the accelerator pedal exists;
the preset conditions include one or more of the following:
the driver's seat of the vehicle has no driver;
the change rate of the accelerator pedal voltage per unit time of the vehicle is smaller than a first threshold value; and
the difference between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is less than a second threshold.
In some embodiments, the computing module 13 is specifically configured to:
acquiring theoretical voltage parameters corresponding to an accelerator pedal, wherein the theoretical voltage parameters comprise a first voltage detected in real time under a vehicle motion state, a theoretical power supply voltage of the vehicle, a theoretical working voltage range and an actual working voltage range;
and calculating the opening degree of the accelerator pedal according to the zero voltage, the first voltage, the theoretical power supply voltage of the vehicle, the theoretical working voltage range and the actual working voltage range.
In some embodiments, the stationary state includes a charging state or a smart replenishment working state.
Referring to fig. 4, fig. 4 is a schematic structural diagram of another opening calculating device for an accelerator pedal according to an embodiment of the application.
In some embodiments, the accelerator pedal opening calculation device 10 further includes a self-learning module 14.
The self-learning module 14 is configured to detect a real-time voltage of the accelerator pedal and update the stored zero voltage according to the real-time voltage when the vehicle is detected to be in a stationary state and no interference factor to the accelerator pedal exists currently.
It should be noted that, since the opening degree calculating device of the accelerator pedal is based on the same inventive concept as the opening degree calculating method of the accelerator pedal in the above embodiment, the corresponding matters in the above method embodiment are also applicable to the device embodiment, and are not described in detail here.
Therefore, when the opening degree calculating device of the accelerator pedal provided by the embodiment of the application calculates the opening degree of the accelerator pedal, the accuracy of the opening degree of the accelerator pedal is improved. In addition, by the method that the driver does not exist in the driver seat of the vehicle, the change rate of the accelerator pedal voltage in unit time of the vehicle is smaller than a first threshold value, and the difference value between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is smaller than a second threshold value, after the fact that interference factors on the accelerator pedal do not exist is determined, the obtained zero voltage of the accelerator pedal is more accurate, the calculated opening degree of the accelerator pedal is more accurate, the problem that the opening degree of the accelerator pedal is inaccurate due to zero drift is solved, the torque calculation strategy of the whole vehicle can be carried out based on the correct opening degree of the accelerator pedal, and reliability and safety in the using process of the whole vehicle are improved.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a vehicle controller according to an embodiment of the present application. The vehicle controller 20 may be configured to execute the accelerator pedal opening degree calculation method as described above. As shown in fig. 5, the vehicle control unit 20 includes:
one or more processors 21 and a memory 22, one processor 21 being exemplified in fig. 5.
The processor 21 and the memory 22 may be connected by a bus or otherwise, for example in fig. 5.
The memory 22 is a non-volatile computer readable storage medium, and may be used to store a non-volatile software program, a non-volatile computer executable program, and modules, such as program instructions/modules corresponding to the method for calculating the opening degree of the accelerator pedal in the embodiment of the present application. The processor 21 executes various functional applications and data processing of the accelerator pedal opening degree calculation device by executing nonvolatile software programs, instructions, and modules stored in the memory 22, that is, implements the accelerator pedal opening degree calculation method of the above-described method embodiment.
The memory 22 may include a storage program area that may store an operating system, at least one application program required for functions, and a storage data area; the storage data area may store data created from the use of the opening degree calculating means of the accelerator pedal, and the like. In addition, the memory 22 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 22 may optionally include a memory remotely located with respect to the processor 21, which may be connected to the accelerator pedal opening calculation device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more modules are stored in the memory 22 that, when executed by the one or more processors 21, implement the method of calculating the opening of the accelerator pedal in any of the method embodiments described above, e.g., performing the method steps S1-S3 in fig. 1 described above, the method steps S31-S32 in fig. 2, implement the functions of the modules 11-13 in fig. 3, and the functions of the modules 11-14 in fig. 4.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. Technical details not described in detail in this embodiment may be found in the methods provided in the embodiments of the present application.
The embodiment of the application provides a vehicle, which comprises the whole vehicle controller.
It should be noted that, since the vehicle and the whole vehicle controller 20 are both based on the same inventive concept as the method of calculating the opening degree of the accelerator pedal in the above embodiment, the corresponding matters in the above method embodiment are also applicable to the vehicle and the whole vehicle controller 20, and will not be described in detail here.
The apparatus embodiments described above are merely illustrative, wherein elements illustrated as separate elements may or may not be physically separate, and elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus a general purpose hardware platform, or may be implemented by hardware. Those skilled in the art will appreciate that all or part of the processes implementing the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include processes of the embodiments of the methods described above when executed. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), or the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; the technical features of the above embodiments or in different embodiments may also be combined within the idea of the application, the steps may be implemented in any order, and there are many other variations of the different aspects of the application as described above, which are not provided in details for the sake of brevity; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (11)
- A method for calculating an opening degree of an accelerator pedal, the method comprising:detecting whether an interference factor on an accelerator pedal exists when the vehicle is in a stationary state;if no interference factor exists on the accelerator pedal, detecting zero voltage of the accelerator pedal and storing the zero voltage;and when the vehicle is in a motion state, calculating the opening of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal.
- The method of claim 1, wherein the detecting whether there is an interfering factor with the accelerator pedal comprises:detecting whether the vehicle currently meets a preset condition, if so, determining that no interference factor exists on the accelerator pedal; otherwise, determining that an interference factor to the accelerator pedal exists;the preset conditions include one or more of the following:the driver's seat of the vehicle is free of a driver;the change rate of the voltage of the accelerator pedal in unit time of the vehicle is smaller than a first threshold value; andthe difference between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is smaller than a second threshold value.
- The method according to claim 1 or 2, wherein calculating the opening of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal comprises:acquiring theoretical voltage parameters corresponding to the accelerator pedal, wherein the theoretical voltage parameters comprise a first voltage detected in real time in the vehicle motion state, a theoretical power supply voltage of the vehicle, a theoretical working voltage range and an actual working voltage range;and calculating the opening degree of the accelerator pedal according to the zero voltage, the first voltage, the theoretical power supply voltage of the vehicle, the theoretical working voltage range and the actual working voltage range.
- A method according to claim 3, wherein the quiescent state comprises a charging state or a smart power supplementing state.
- The method according to claim 1, wherein the method further comprises:and detecting a real-time voltage of the accelerator pedal and updating the stored zero voltage according to the real-time voltage under the condition that the vehicle is detected to be in a static state and no interference factor to the accelerator pedal exists currently.
- An accelerator pedal opening degree calculating device, characterized by comprising:the first detection module is used for detecting whether an interference factor on an accelerator pedal exists when the vehicle is in a stationary state;the second detection module is used for detecting zero voltage of the accelerator pedal and storing the zero voltage if no interference factors exist on the accelerator pedal;and the calculation module is used for calculating the opening of the accelerator pedal according to the zero voltage and the theoretical voltage parameter corresponding to the accelerator pedal when the vehicle is in a motion state.
- The apparatus of claim 6, wherein the first detection module is specifically configured to:when a vehicle is in a stationary state, detecting whether the vehicle currently meets a preset condition, and if so, determining that no interference factor on the accelerator pedal exists; otherwise, determining that an interference factor to the accelerator pedal exists;the preset conditions include one or more of the following:the driver's seat of the vehicle is free of a driver;the change rate of the voltage of the accelerator pedal in unit time of the vehicle is smaller than a first threshold value; andthe difference between the current accelerator pedal voltage of the vehicle and the pre-stored accelerator pedal voltage is smaller than a second threshold value.
- The apparatus according to claim 6 or 7, wherein the computing module is specifically configured to:when the vehicle is in a motion state, acquiring theoretical voltage parameters corresponding to the accelerator pedal, wherein the theoretical voltage parameters comprise a first voltage detected in real time in the motion state of the vehicle, a theoretical power supply voltage of the vehicle, a theoretical working voltage range and an actual working voltage range;and calculating the opening degree of the accelerator pedal according to the zero voltage, the first voltage, the theoretical power supply voltage of the vehicle, the theoretical working voltage range and the actual working voltage range.
- The apparatus of claim 6, wherein the apparatus further comprises:and the self-learning module is used for detecting the real-time voltage of the accelerator pedal and updating the stored zero voltage according to the real-time voltage under the condition that the vehicle is detected to be in a static state and no interference factor on the accelerator pedal exists currently.
- An overall vehicle controller, comprising:at least one processor; the method comprises the steps of,a memory communicatively coupled to the at least one processor; wherein,the memory stores instructions executable by the at least one processor to enable the vehicle controller to implement the method of any one of claims 1-5.
- A vehicle comprising the vehicle control unit of claim 10.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/142093 WO2023122959A1 (en) | 2021-12-28 | 2021-12-28 | Method and apparatus for calculating opening degree of accelerator pedal, whole vehicle controller and vehicle |
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| Publication Number | Publication Date |
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| CN116670487A true CN116670487A (en) | 2023-08-29 |
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| CN202180053784.2A Pending CN116670487A (en) | 2021-12-28 | 2021-12-28 | Method and device for calculating opening degree of accelerator pedal, whole vehicle controller and vehicle |
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| Country | Link |
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| CN (1) | CN116670487A (en) |
| WO (1) | WO2023122959A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618442A (en) * | 1984-06-22 | 1986-01-16 | Nissan Motor Co Ltd | Abnormality diagnosis device in accelerator control device in vehicle internal combustion engine |
| CN105691404B (en) * | 2014-11-28 | 2018-04-10 | 上海汽车集团股份有限公司 | Vehicle accelerator pedal dead-center position diagnostic method and device |
| CN108839559B (en) * | 2018-06-21 | 2020-07-17 | 北京新能源汽车股份有限公司 | Self-adaptive learning method and device for zero position of accelerator pedal and vehicle |
| CN112298070A (en) * | 2019-07-26 | 2021-02-02 | 华为技术有限公司 | Pedal fault diagnosis method and device |
| CN112757897A (en) * | 2021-01-04 | 2021-05-07 | 重庆长安汽车股份有限公司 | Self-learning method and system for accelerator pedal of pure electric vehicle and vehicle |
-
2021
- 2021-12-28 CN CN202180053784.2A patent/CN116670487A/en active Pending
- 2021-12-28 WO PCT/CN2021/142093 patent/WO2023122959A1/en active Application Filing
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