Vehicle control method, device, vehicle and computer-readable storage medium

Abstract

The present invention discloses a control method, device, vehicle and computer-readable storage medium for a vehicle, wherein the rear axle assembly of the vehicle comprises a rear axle housing containing oil and a sensor for detecting the internal state of the rear axle housing, and the control method of the vehicle comprises the following steps: obtaining a driving state signal of the vehicle and an internal state signal of the rear axle housing transmitted by the sensor; and controlling the vehicle to send an alarm signal and / or control the driving state of the vehicle according to the driving state signal and the internal state signal of the rear axle housing. The present invention can simply, quickly and accurately detect the internal state of the rear axle housing through a sensor arranged on the rear axle assembly, which saves time, labor and cost, and controls the vehicle in combination with the driving state of the vehicle, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the components of the rear axle assembly caused by abnormal oil in the rear axle housing, thereby improving the stability and reliability of the rear axle assembly, and further facilitating the improvement of the quality of the entire vehicle.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a vehicle control method, a vehicle control device, a vehicle and a computer-readable storage medium. Background Art

[0002] The main function of the rear axle assembly of a vehicle is to change the transmission direction of the power input by the drive shaft after deceleration and torque increase, and then distribute it to the left and right drive wheels, so that the left and right drive wheels have the differential function required by the kinematics of vehicle driving; at the same time, the drive axle must also withstand the vertical force, longitudinal force, lateral force and torque acting between the road surface and the frame or load-bearing body. The rear axle housing of the rear axle assembly is the installation base of the main reducer, differential and other transmission devices. The rear axle housing contains gear oil. When the vehicle is running, the driving gear, driven gear, differential gear and bearing in the rear axle will rotate and rub, thereby generating a lot of heat. The role of the gear oil is to lubricate each component, make it run smoothly, reduce friction, and achieve the purpose of cooling and heat dissipation and reducing the noise of operation.

[0003] At present, there are many cases where the rear axle assembly is scrapped due to the main engine factory's failure to add rear axle gear oil, which causes the main reducer bearing to burn and the gear to wear before the vehicle leaves the main engine factory. In addition, after some vehicles have traveled over flooded roads, muddy water enters the rear axle through the rear axle vent valve, and the muddy water mixes with the gear oil to emulsify the gear oil. If it is not removed in time, the lubricating effect of the gear oil will be reduced, the gear will be worn and damaged, and eventually the entire rear axle will be scrapped. If the state of the oil in the rear axle can be confirmed in time after wading, gear damage and rear axle scrapping can be avoided, thereby avoiding major losses. In addition, the rear axle gear oil also needs to be replaced regularly. If it is not replaced for a long time, the performance of the oil will decline. Because the gears rotate continuously in the cavity of the rear axle housing, a lot of impurities will be generated, resulting in a decrease in the lubricity of the oil. If it is not replaced in time, it will cause accelerated wear of the internal parts of the rear axle, thereby greatly reducing the service life of the parts.

[0004] Existing rear axle housings are basically made of stamped and welded steel plates. Therefore, due to the limitations of the current rear axle housing structure, the internal situation cannot be seen from the outside. Vehicle users cannot simply, quickly and accurately learn about the internal status of the rear axle housing from the outside, such as the internal oil status. For example, it is impossible to directly determine whether gear oil has been added, or whether the internal gear oil needs to be replaced or whether impurities have entered. The only way is to go to the relevant vehicle service station for inspection and confirmation, but this method is time-consuming, labor-intensive, and costly. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0006] To this end, an object of the present invention is to propose a vehicle control method, which can simply, quickly and accurately detect the internal state of the rear axle housing through a sensor arranged on the rear axle assembly, saving time, labor and low cost, and controlling the vehicle in combination with the driving state of the vehicle, and can effectively avoid the problems of scrapping the entire axle due to abnormal oil in the rear axle housing, damage to gears and bearings, and reduced service life of rear axle assembly parts, thereby improving the stability and reliability of the vehicle's rear axle assembly, and further helping to improve the quality of the entire vehicle.

[0007] To this end, a second object of the present invention is to provide a control device for a vehicle.

[0008] To this end, a third object of the present invention is to provide a vehicle.

[0009] To this end, a fourth object of the present invention is to provide a computer-readable storage medium.

[0010] To achieve the above-mentioned objectives, an embodiment of the first aspect of the present invention discloses a vehicle control method, wherein the rear axle assembly of the vehicle includes a rear axle housing containing oil and a sensor for detecting the internal state of the rear axle housing, and the control method includes the following steps: obtaining a driving status signal of the vehicle and an internal state signal of the rear axle housing transmitted by the sensor; and controlling the vehicle to send an alarm signal and / or controlling the driving state of the vehicle according to the driving status signal and the internal state signal of the rear axle housing.

[0011] According to the vehicle control method of the embodiment of the present invention, a sensor for detecting the internal state of the rear axle housing is arranged on the rear axle assembly of the vehicle, and the vehicle driving state signal and the rear axle housing internal state signal transmitted by the sensor are obtained; according to the driving state signal and the rear axle housing internal state signal, the vehicle is controlled to send an alarm signal and / or control the driving state of the vehicle. Therefore, the method can simply, quickly and accurately detect the internal state of the rear axle housing through the sensor arranged on the rear axle assembly, which saves time and effort and is low in cost, and controls the vehicle in combination with the driving state of the vehicle, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the rear axle assembly parts caused by abnormal oil in the rear axle housing, thereby improving the stability and reliability of the vehicle rear axle assembly, and further helping to improve the quality of the entire vehicle.

[0012] In addition, the vehicle control method according to the above embodiment of the present invention may also have the following additional technical features:

[0013] In some examples, the driving status signal includes at least a vehicle speed signal of the vehicle; the rear axle housing internal status signal includes: at least one of an oil pressure signal corresponding to the oil, an oil foreign matter content signal, and an oil temperature signal.

[0014] In some examples, the vehicle is controlled to issue an alarm signal and / or the driving status of the vehicle is controlled based on the driving status signal and the internal status signal of the rear axle housing, including: if at least one of the oil pressure signal is not greater than a first preset pressure threshold and the oil temperature signal is greater than a preset temperature threshold, the vehicle is controlled to issue a first preset alarm signal.

[0015] In some examples, after controlling the vehicle to issue a first preset alarm signal, it includes: if the vehicle speed signal is greater than zero, controlling the vehicle to brake and maintain it in a stopped state until it is detected that the oil pressure signal changes to be greater than the first preset pressure threshold, and / or the oil temperature signal is not greater than the preset temperature threshold, then controlling the vehicle to release the brakes.

[0016] In some examples, the vehicle is controlled to issue an alarm signal and / or the driving status of the vehicle is controlled based on the driving status signal and the internal status signal of the rear axle housing, including: if the oil pressure signal is greater than a second preset pressure threshold and not greater than a third preset pressure threshold, the vehicle is controlled to issue a second preset alarm signal.

[0017] In some examples, after controlling the vehicle to issue a second preset alarm signal, the method includes: if the vehicle speed signal is greater than zero, controlling the vehicle speed according to the oil pressure signal, wherein the oil pressure signal is proportional to the vehicle speed.

[0018] In some examples, the vehicle is controlled to issue an alarm signal and / or the driving status of the vehicle is controlled based on the driving status signal and the internal status signal of the rear axle housing, including: if the oil foreign matter content signal is greater than a preset foreign matter content threshold, the vehicle is controlled to issue a third preset alarm signal.

[0019] In some examples, after controlling the vehicle to issue three preset alarm signals, the process includes: if the vehicle speed signal is greater than zero, controlling the vehicle speed according to the oil foreign matter content signal, wherein the oil foreign matter content signal is inversely proportional to the vehicle speed.

[0020] To achieve the above-mentioned purpose, an embodiment of the second aspect of the present invention discloses a vehicle control device, wherein the rear axle assembly of the vehicle includes a rear axle housing containing oil and a sensor for detecting the internal state of the rear axle housing, and the control device includes: an acquisition module, used to acquire the driving status signal of the vehicle and the internal state signal of the rear axle housing detected by the sensor; a control module, used to control the vehicle to issue an alarm signal and / or control the driving state of the vehicle according to the driving status signal and the internal state signal of the rear axle housing.

[0021] According to the vehicle control device of the embodiment of the present invention, a sensor for detecting the internal state of the rear axle housing is arranged on the rear axle assembly of the vehicle, and the vehicle driving state signal and the rear axle housing internal state signal transmitted by the sensor are obtained; according to the driving state signal and the rear axle housing internal state signal, the vehicle is controlled to send an alarm signal and / or control the driving state of the vehicle. Therefore, the control device can simply, quickly and accurately detect the internal state of the rear axle housing through the sensor arranged on the rear axle assembly, which saves time and effort and is low in cost, and controls the vehicle in combination with the driving state of the vehicle, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the rear axle assembly parts caused by abnormal oil in the rear axle housing, thereby improving the stability and reliability of the vehicle rear axle assembly, and further contributing to improving the quality of the entire vehicle.

[0022] To achieve the above-mentioned objectives, a third aspect of an embodiment of the present invention discloses a vehicle, which includes: a rear axle assembly, the rear axle assembly including a rear axle housing containing oil and a sensor for detecting the internal state of the rear axle housing; and a controller, the controller is used to execute the vehicle control method described in the above embodiment of the present invention.

[0023] According to the vehicle of the embodiment of the present invention, the rear axle assembly is provided with a sensor for detecting the internal state of the rear axle housing, and the vehicle is controlled to send out an alarm signal and / or control the vehicle's driving state by acquiring the vehicle's driving state signal and the rear axle housing internal state signal transmitted by the sensor; according to the driving state signal and the rear axle housing internal state signal, the vehicle can be controlled to send out an alarm signal and / or control the vehicle's driving state. Thus, the vehicle can simply, quickly and accurately detect the internal state of the rear axle housing through the sensor provided on the rear axle assembly, which saves time and effort and is low in cost, and controls the vehicle in combination with the vehicle's driving state, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the rear axle assembly parts caused by abnormal oil in the rear axle housing, thereby improving the stability and reliability of the vehicle's rear axle assembly, and further contributing to improving the quality of the entire vehicle.

[0024] In addition, the vehicle according to the above embodiment of the present invention may also have the following additional technical features:

[0025] In some examples, the rear axle housing includes: an upper housing and a lower housing, the upper housing and the lower housing are connected by an intermediate connecting component to form a chamber for containing the oil; an oil drain hole, the oil drain hole is arranged on one side of the lower housing; the sensor is arranged on the other side of the lower housing relative to the oil drain hole.

[0026] In some examples, the sensor is located at a height higher than a preset position of the lower housing.

[0027] In some examples, the sensor is disposed within a preset height range above a preset position of the lower housing.

[0028] To achieve the above objectives, the fourth aspect of the present invention discloses a computer-readable storage medium, on which a vehicle control program is stored. When the vehicle control program is executed by a processor, the vehicle control method as described in the above embodiment of the present invention is implemented.

[0029] According to the computer-readable storage medium of the embodiment of the present invention, when the control program of the vehicle stored thereon is executed by the processor, the driving state signal of the vehicle and the internal state signal of the rear axle housing transmitted by the sensor arranged on the rear axle housing are obtained; according to the driving state signal and the internal state signal of the rear axle housing, the vehicle is controlled to send out an alarm signal and / or the driving state of the vehicle is controlled. Therefore, the internal state of the rear axle housing can be simply, quickly and accurately detected by the sensor arranged on the rear axle assembly, which saves time, labor and cost, and controls the vehicle in combination with the driving state of the vehicle, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the parts of the rear axle assembly caused by abnormal oil in the rear axle housing, thereby improving the stability and reliability of the rear axle assembly of the vehicle, and further contributing to improving the quality of the entire vehicle.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 is a schematic structural diagram of a rear axle assembly of a vehicle according to an embodiment of the present invention;

[0033] Figure 2 is a schematic structural diagram of a lower housing of a rear axle housing according to an embodiment of the present invention;

[0034] Figure 3 is a schematic diagram of the arrangement position of a sensor according to an embodiment of the present invention;

[0035] Figure 4 is a flow chart of a vehicle control method according to an embodiment of the present invention;

[0036] Figure 5 is a structural block diagram of a vehicle control device according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 100 - vehicle control device; 110 - acquisition module; 120 - control module;

[0039] 1-rear axle housing; 2-sensor; 3-sensor mounting housing; 4-wiring harness plug interface; 5-lower housing; 6-upper housing; 7-oil drain hole; 8-fuel filling port; 9-middle connecting component. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0041] Reference below Figure 1-Figure 5 A vehicle control method, a vehicle control device, a vehicle, and a computer-readable storage medium according to embodiments of the present invention are described.

[0042] Before introducing the vehicle control method according to the embodiment of the present invention, the vehicle involved is first described in detail.

[0043] Specifically, the vehicle includes a rear axle assembly. Figure 1 As shown, the structural diagram of the rear axle assembly is shown. Figure 1 As shown, the rear axle assembly includes a rear axle housing 1 containing oil (such as gear oil) and a sensor 2 for detecting the internal state of the rear axle housing 1, such as the state of the oil. It is understandable that the sensor 2 may include multiple sensing units, and the multiple sensing units are integrated to form the sensor 2, so that the sensor 2 can perform multiple state analysis and detection on the oil, such as oil quantity detection, oil impurity detection, oil temperature detection, etc. Specifically, the sensor 2 can be immersed in the oil inside the rear axle housing 1, thereby accurately detecting the state of the oil.

[0044] Combination Figure 2 As shown, the rear axle housing 1 includes an upper housing 6 and a lower housing 5. The upper housing 6 and the lower housing 5 are connected by an intermediate connecting component 9 to form a chamber for containing the oil, and the chamber can contain the oil.

[0045] Furthermore, the rear axle housing 1 further includes a refueling port 8 and an oil drain hole 7. Specifically, when refueling, oil can be added into the rear axle housing 1 through the refueling port 8; when the oil needs to be replaced, the oil in the rear axle housing 1 can be released through the oil drain hole 7, and after the oil is released, new oil can be added through the refueling port 8, thereby achieving oil replacement.

[0046] Specifically, Figure 1 As shown, the sensor 2 can be arranged on the lower housing 5 of the rear axle housing 1, thereby accurately detecting the oil pressure signal and the like, thereby facilitating accurate determination of the oil state.

[0047] Further, the sensor 2 may be arranged on the other side of the lower shell 5 relative to the oil drain hole 7 , that is, the oil drain hole 7 is arranged on one side of the lower shell 5 , and the sensor 2 is arranged on the other side of the lower shell 5 .

[0048] In one embodiment of the present invention, Figure 1 As shown, the height of the position where the sensor 2 is located is higher than the preset position of the lower housing 5. Specifically, the preset position can be selected according to actual needs, and the selection basis is to ensure the passability of the vehicle. That is to say, after the preset position is selected, when the height of the sensor 2 is set at a position higher than the preset position of the lower housing 5, the vehicle can pass smoothly, thereby avoiding affecting the passability of the vehicle. In a specific embodiment, the preset position is, for example, the lowest point at the bottom of the lower housing 5, for example Figure 3 As shown, when the setting height of the sensor 2 is higher than the lowest point of the lower shell 5, the vehicle's passability will not be affected.

[0049] In one embodiment of the present invention, the sensor 2 is disposed within a preset height range above a preset position of the lower housing 5. In a specific embodiment, the preset height range is, for example, 20-30 mm, that is, the sensor 2 is disposed within a preset position of the lower housing 5, such as within a range of 20-30 mm above the lowest point, thereby avoiding affecting the vehicle's passability while further avoiding affecting the detection of the internal state of the rear axle housing (such as the oil state), thereby improving the accuracy of the detection of the internal state of the rear axle housing.

[0050] In other words, the sensor 2 should be set higher than the lowest point of the lower housing 5, otherwise it will affect the vehicle's passability, but it should not be set too high, otherwise it will affect the collection of the internal state detection signal of the rear axle housing, thereby affecting the accuracy of the detection result. Preferably, the sensor 2 is set at a height within a range of 20 mm to 30 mm above the lowest point of the lower housing 5.

[0051] Combination Figure 3 As shown, the sensor 2 can be arranged in the sensor mounting housing 3, thereby protecting the sensor 2. Specifically, the sensor mounting housing 3 is configured as a raised structure, and the sensor 2 is placed in the raised structure. That is, a raised structure for placing the sensor 2 is opened at the bottom of the lower housing 5 relative to the oil drain hole 7, so that the sensor 2 can be placed. Further, as Figure 3 As shown, a small hole, namely the wiring harness plug-in port 4, is opened on the outside of the sensor mounting housing 3 for the wiring harness connector to connect the wiring harness. The convex structure can be realized by stamping, and has a simple structure and is easy to manufacture.

[0052] Combination Figure 1-Figure 3, the sensor 2 is placed on the lower housing 5 of the rear axle housing 1, specifically placed in the sensor mounting housing 3 for protection, the sensor 2 penetrates into the oil, and constantly collects the internal state signal of the rear axle housing, such as the oil foreign matter content (i.e., impurity content) signal, the oil pressure signal, and the internal oil temperature signal, etc., so that the internal state of the rear axle housing, such as the oil state, can be detected simply, quickly, and accurately, saving time, labor, and cost. The sensor 2 is connected to the vehicle controller, and the collected rear axle housing internal state signal is constantly sent to the controller for analysis and processing. At the same time, the controller constantly collects the vehicle speed signal, and controls the vehicle in combination with the rear axle housing internal state signal and the speed signal, so as to effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the rear axle assembly parts caused by abnormal oil in the rear axle housing 1, thereby improving the stability and reliability of the vehicle rear axle assembly, and further contributing to improving the quality of the entire vehicle.

[0053] Combined with the above description of the vehicle and its rear axle assembly, the following is combined with the attached Figure 4 A vehicle control method according to an embodiment of the present invention is described in detail.

[0054] Figure 4 FIG. 1 is a flow chart of a vehicle control method according to an embodiment of the present invention. Figure 4 As shown, the vehicle control method comprises the following steps:

[0055] Step S1: Acquire the driving state signal of the vehicle and the internal state signal of the rear axle housing transmitted by the sensor 2, such as the oil state signal.

[0056] Specifically, the driving state signal of the vehicle, such as but not limited to the signal used to characterize the vehicle speed, can be detected by the relevant driving state sensor arranged on the vehicle, and the corresponding driving state signal can be transmitted. As mentioned above, the internal state of the rear axle housing can be detected in real time by the sensor 2, and the corresponding internal state signal of the rear axle housing can be transmitted. In this way, the driving state signal of the vehicle and the internal state signal of the rear axle housing can be obtained.

[0057] Step S2: According to the driving state signal and the internal state signal of the rear axle housing, the vehicle is controlled, specifically controlling the vehicle to send out an alarm signal and / or controlling the driving state of the vehicle.

[0058] Specifically, the vehicle is controlled according to the driving status signal and the internal status signal of the rear axle housing obtained above, for example, the vehicle is controlled to send a corresponding alarm signal to prompt the vehicle user of the current internal status of the rear axle housing, such as the oil status; further, the driving status of the vehicle can also be controlled, such as controlling the vehicle to slow down or brake to stop, etc., to effectively avoid the scrapping of the entire axle due to abnormal oil in the rear axle housing 1, damage to gears and bearings, and reduced service life of rear axle assembly parts, thereby improving the stability and reliability of the vehicle's rear axle assembly, thereby improving the quality of the entire vehicle.

[0059] Therefore, the above-mentioned vehicle control method is provided with a sensor 2 for detecting the internal state of the rear axle housing on the rear axle assembly of the vehicle, and the vehicle driving state signal and the rear axle housing internal state signal transmitted by the sensor 2 are obtained; according to the driving state signal and the rear axle housing internal state signal, the vehicle is controlled to send an alarm signal and / or control the driving state of the vehicle. Therefore, the method can simply, quickly and accurately detect the internal state of the rear axle housing through the sensor 2 provided on the rear axle assembly, which saves time and effort and is low in cost, and controls the vehicle in combination with the driving state of the vehicle, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the rear axle assembly parts caused by abnormal oil in the rear axle housing 1, thereby improving the stability and reliability of the vehicle rear axle assembly, and further contributing to improving the quality of the entire vehicle.

[0060] In one embodiment of the present invention, the driving status signal includes at least a vehicle speed signal; the rear axle housing internal status signal includes: at least one of an oil pressure signal corresponding to the oil, an oil foreign matter content signal, and an oil temperature signal.

[0061] Specifically, the vehicle speed signal can represent the vehicle speed, which can be obtained by detecting the wheel speed signal of the vehicle. Specifically, when the wheel speed signal is greater than zero, it indicates that the vehicle speed is greater than zero, and the vehicle is moving at this time. When the wheel speed is zero, it indicates that the vehicle speed is zero, and the vehicle is stationary at this time.

[0062] The oil pressure signal is the pressure generated by the oil in the rear axle housing 1, which is used to characterize the amount of oil. It can be understood that the larger the oil pressure signal, the more corresponding oil volume, and the smaller the oil pressure signal, the less corresponding oil volume.

[0063] The oil foreign matter content signal is used to indicate the amount of foreign matter when there is foreign matter in the oil. It is understandable that when the foreign matter content is high, it will affect the lubrication performance of the oil, causing gear wear and damage, and ultimately causing the entire rear axle assembly to be scrapped. Therefore, it is necessary to detect the amount of foreign matter in the oil to determine whether the oil needs to be replaced. Specifically, oil foreign matter refers to impurities in the oil, such as but not limited to particulate matter and muddy water mixed in the oil. When particulate matter is detected in the oil, the foreign matter content of the oil can be obtained by further detecting the concentration of the particulate matter, and the corresponding oil foreign matter content signal can be output. On the other hand, since the density of oil and muddy water is different, it is possible to determine whether muddy water is mixed in the oil and the content of muddy water by detecting the density of the oil.

[0064] The oil temperature signal can be detected by the temperature sensing unit in the sensor 2. It is understandable that excessively high oil temperature will lead to a decrease in the performance and service life of the oil, thereby reducing the lubrication effect and accelerating the wear of components such as gears.

[0065] In one embodiment of the present invention, the vehicle is controlled to send out an alarm signal and / or the driving state of the vehicle is controlled according to the driving state signal and the internal state signal of the rear axle housing, including: if at least one of the oil pressure signal is not greater than a first preset pressure threshold and the oil temperature signal is greater than a preset temperature threshold is satisfied, then the vehicle is controlled to send out a first preset alarm signal.

[0066] Specifically, the first preset pressure threshold is a preset empirical value. When the oil pressure signal is not greater than, that is, less than or equal to, the first preset pressure threshold, it is considered that there is no oil in the rear axle housing 1, that is, when the vehicle leaves the factory, the rear axle assembly leaks oil. If the vehicle continues to be driven, it will directly cause damage to components such as gears, or even scrap the rear axle assembly. In a specific embodiment, the value range of the first preset pressure threshold is, for example, 0-10%. When the oil pressure signal is between 0-10%, it is considered that oil is leaking.

[0067] The preset temperature threshold is a pre-set empirical value. When the oil temperature signal is greater than the preset temperature threshold, it is considered that the oil temperature is too high, the performance and service life of the oil are reduced, and the lubrication effect is reduced. If the vehicle continues to be driven, the wear of gears and other components will be accelerated.

[0068] Specifically, when it is determined that the oil pressure signal is not greater than the first preset pressure threshold, and / or the oil temperature signal is greater than the preset temperature threshold, the vehicle is controlled to send a first preset alarm signal to remind the vehicle user that the rear axle assembly is leaking oil or the oil temperature is too high, driving is prohibited, and oil needs to be added or the oil temperature needs to be lowered before driving. In a specific embodiment, the first preset alarm signal is, for example, but not limited to, an audible or visual alarm, specifically at least one of a loud sound prompt signal and a high flashing frequency light signal, thereby improving the reliability of the alarm prompt. Therefore, the vehicle user is reminded by a loud sound prompt signal and / or a high flashing frequency light signal that the rear axle assembly is leaking oil or the oil temperature is too high, driving is prohibited, and oil needs to be added or the oil temperature needs to be lowered before driving, thereby improving the stability and reliability of the vehicle's rear axle assembly, and further improving the quality of the vehicle.

[0069] In one embodiment of the present invention, after controlling the vehicle to issue a first preset alarm signal, it includes: if the vehicle speed signal is greater than zero, controlling the vehicle to brake and maintain it in a stopped state until it is detected that the oil pressure signal changes to a value greater than a first preset pressure threshold, and / or the oil temperature signal is not greater than a preset temperature threshold, then controlling the vehicle to release the brakes.

[0070] Specifically, when it is determined that the vehicle is leaking oil and / or the oil temperature is too high, a first preset alarm signal is issued, and it is further determined whether the vehicle speed signal is greater than 0. If the vehicle speed signal is greater than 0, the vehicle is in a driving state at this time, and the vehicle is controlled to brake and maintain a stopped state, that is, the vehicle is forced to brake and stop. At this time, the vehicle cannot continue to drive until it is detected that the oil pressure signal changes to a value greater than the first preset pressure threshold, that is, oil is added to the rear axle assembly, and / or the oil temperature signal is not greater than, that is, less than or equal to the preset temperature threshold, that is, when the oil temperature decreases, the vehicle is controlled to release the brake. That is, the vehicle is forced to brake and remain in a stopped state until oil is added to the rear axle assembly of the vehicle again, and / or the oil temperature decreases to below the preset temperature, that is, when the oil temperature is low, the vehicle's brake state is released so that the vehicle can continue to drive. In this way, problems such as scrapping of the entire axle due to oil leakage in the rear axle housing 1 and / or high oil temperature, damage to gears and bearings, and reduced service life of rear axle assembly parts can be avoided, thereby improving the stability and reliability of the vehicle's rear axle assembly and further contributing to improving the quality of the entire vehicle.

[0071] In one embodiment of the present invention, the vehicle is controlled to send an alarm signal and / or the driving state of the vehicle is controlled according to the driving state signal and the internal state signal of the rear axle housing, including: if the oil pressure signal is greater than the second preset pressure threshold and not greater than the third preset pressure threshold, the vehicle is controlled to send a second preset alarm signal.

[0072] Specifically, the second preset pressure threshold and the third preset pressure threshold are pre-set empirical values. When the oil pressure signal is greater than the second preset pressure threshold and not greater than, that is, less than or equal to, the third preset pressure threshold, it is considered that there is oil in the rear axle housing 1, but the amount of oil is small. It is understandable that as the vehicle travels, the various components in the rear axle assembly continue to operate, the oil is continuously consumed, the oil gradually decreases, the performance of the oil gradually decreases, and the lubrication effect also decreases. When the amount of oil is small, if the vehicle continues to travel, it will accelerate the damage of components such as gears, and even scrap the rear axle assembly. Therefore, it is necessary to replenish the oil in time to ensure the performance of the oil and then ensure the lubrication effect. In a specific embodiment, the value of the second preset pressure threshold is, for example, 10%, and the value of the third preset pressure threshold is, for example, 90%. That is, when the oil pressure signal is between 10%-90%, it is considered that the amount of oil is small.

[0073] It is understandable that when the oil pressure signal is greater than the third preset pressure threshold, the oil level is considered normal, that is, the oil in the rear axle assembly is full. Specifically, when the oil pressure signal is between 90% and 100%, the oil level is considered normal, and no oil needs to be replenished, and the vehicle can travel normally.

[0074] Specifically, when it is determined that the oil pressure signal is greater than the second preset pressure threshold and not greater than the third preset pressure threshold, the vehicle is controlled to send a second preset alarm signal to remind the vehicle user that the amount of oil in the rear axle assembly is low, the oil performance is reduced, the lubrication effect is reduced, and it is recommended to replenish the oil in time. In a specific embodiment, the second preset alarm signal is, for example, but not limited to, an audible or visual alarm, specifically at least one of a sound prompt signal with a lower volume than the first preset alarm signal and a light signal with a lower flashing frequency than the first preset alarm signal, thereby improving the reliability of the alarm prompt. Therefore, the vehicle user is reminded by a sound prompt signal with a lower volume and / or a light signal with a lower flashing frequency that the amount of oil in the rear axle assembly is low, and it is recommended to replenish the oil in time, which is beneficial to improving the stability and reliability of the vehicle's rear axle assembly, and further to improving the quality of the entire vehicle.

[0075] In one embodiment of the present invention, after controlling the vehicle to send out two preset alarm signals, it includes: if the vehicle speed signal is greater than zero, the vehicle speed is controlled according to the oil pressure signal, wherein the oil pressure signal is proportional to the vehicle speed, that is, the smaller the oil pressure signal, the lower the corresponding vehicle speed.

[0076] Specifically, when it is determined that the amount of oil in the rear axle assembly is low, a second preset alarm signal is issued, and it is further determined whether the vehicle speed signal is greater than 0. If the vehicle speed signal is greater than 0, it means that the vehicle is in a driving state at this time, and the vehicle is controlled to slow down to reduce the degree of damage to gears and other components. Specifically, the vehicle speed can be controlled according to the pressure signal in the oil, that is, the smaller the oil pressure signal, the lower the corresponding vehicle speed. Therefore, the vehicle speed is adaptively adjusted according to the amount of oil, while ensuring the driving power of the vehicle, the degree of damage to gears and other components is reduced, the intelligence of the vehicle is improved, and the vehicle user experience is improved.

[0077] In a specific embodiment, when it is determined that the amount of oil is small, the amount of oil can be divided into multiple intervals, and different speed limits can be configured corresponding to the applicability of the multiple intervals, so as to achieve accurate speed limit according to the specific amount of oil, thereby ensuring the driving power of the vehicle while reducing the degree of damage to components such as gears, improving the intelligence of the vehicle, and enhancing the vehicle user experience. For example, if the oil pressure signal corresponding to the amount of oil is between 60%-90%, the vehicle speed is controlled not to exceed 30KM / H; if the oil pressure signal corresponding to the amount of oil is between 30%-60%, the vehicle speed is controlled not to exceed 15KM / H, and the instrument continuously prompts to add gear oil, that is, continuously sends the second preset alarm signal; if the oil pressure signal corresponding to the amount of oil is between 10%-30%, the vehicle speed is controlled not to exceed 5KM / H, and the instrument continuously prompts to add gear oil, that is, continuously sends the second preset alarm signal. The vehicle can only travel normally without speed limit until it is detected that the vehicle has been fully replenished with oil and the oil pressure signal corresponding to the oil volume is greater than the third preset pressure threshold, that is, the oil in the rear axle assembly has reached a full oil state.

[0078] In one embodiment of the present invention, the vehicle is controlled to send out an alarm signal and / or the driving state of the vehicle is controlled according to the driving state signal and the internal state signal of the rear axle housing, including: if the oil foreign matter content signal is greater than the preset foreign matter content threshold, the vehicle is controlled to send out a third preset alarm signal.

[0079] Specifically, the preset foreign matter content threshold is a pre-set empirical value. When the oil foreign matter content signal is greater than the preset foreign matter content threshold, it is considered that the oil in the rear axle housing 1 contains impurities, such as particulate matter and / or muddy water, and the impurity content is high. At this time, the performance of the oil is reduced and the lubrication effect is also reduced. If the vehicle continues to be driven, it will accelerate the damage of components such as gears, and even scrap the rear axle assembly. Therefore, the oil needs to be replaced in time to ensure the oil performance and then ensure the lubrication effect.

[0080] Specifically, when it is determined that the oil foreign matter content signal is greater than the preset foreign matter content threshold, the vehicle is controlled to send a third preset alarm signal to remind the vehicle user that the oil in the rear axle assembly contains impurities and the impurity content is high, the oil performance is reduced, the lubrication effect is reduced, and it is recommended to replace the oil in time. In a specific embodiment, the third preset alarm signal is, for example, but not limited to, an audible or visual alarm, specifically at least one of a sound prompt signal with a lower volume than the second preset alarm signal and a light signal with a lower flashing frequency than the second preset alarm signal, thereby improving the reliability of the alarm prompt. Therefore, the vehicle user is reminded by a sound prompt signal with a lower volume and / or a light signal with a lower flashing frequency that the impurity content in the oil in the rear axle assembly is high, and it is recommended to replace the oil in time, thereby improving the stability and reliability of the vehicle rear axle assembly, and further improving the quality of the vehicle.

[0081] In one embodiment of the present invention, after controlling the vehicle to send out three preset alarm signals, it includes: if the vehicle speed signal is greater than zero, the vehicle speed is controlled according to the oil foreign matter content signal, wherein the oil foreign matter content signal is inversely proportional to the vehicle speed, that is, the larger the oil foreign matter content signal, the lower the corresponding vehicle speed.

[0082] Specifically, when it is determined that the impurity content in the oil in the rear axle assembly is high, a third preset alarm signal is issued, and it is further determined whether the vehicle speed signal is greater than 0. If the vehicle speed signal is greater than 0, it means that the vehicle is in a driving state at this time, and the vehicle is controlled to slow down to reduce the degree of damage to gears and other parts. Specifically, the speed can be controlled according to the amount of impurities in the oil, that is, the more foreign matter content signals in the oil, the lower the corresponding speed. Therefore, the speed is adaptively adjusted according to the amount of impurities in the oil, while ensuring the driving power of the vehicle, the degree of damage to gears and other parts is reduced, the intelligence of the vehicle is improved, and the vehicle user experience is improved.

[0083] In a specific embodiment, the first preset alarm signal, the second preset alarm signal and the third preset alarm signal can be issued by the vehicle instrument. The vehicle's ESP (Electronic Stability Program) can be used to control the vehicle's driving state, such as controlling the vehicle's braking, keeping the vehicle in a stopped state, releasing the vehicle's braking, and adjusting the vehicle's speed signal to reduce the vehicle's speed.

[0084] In a specific embodiment, the working principle of the vehicle control method of the above embodiment of the present invention can be summarized as follows:

[0085] A protruding structure for placing the sensor 2 is opened at the position of the bottom of the lower shell 5 of the rear axle housing 1 relative to the oil drain hole 7, and the sensor 2 for detecting the internal state of the rear axle housing is placed in the protruding structure, and a small hole is opened on the outside of the protruding structure for the connection of the wiring harness connector. Among them, the position of the protruding structure for placing the sensor 2 is higher than the preset position of the lower shell 5, such as the lowest point of the bottom of the lower shell 5, so as to avoid affecting the passability of the whole vehicle. Further, the position of the protruding structure cannot be too high, otherwise it will affect the collection of the internal state signal of the rear axle housing. In this embodiment, its setting height is within the range of 20mm-30mm above the lowest point of the lower shell 5. The sensor 2 collects the oil foreign matter content signal, oil pressure signal and oil temperature signal at all times, and sends the collected related signals to the corresponding controller of the vehicle in real time for analysis and processing. At the same time, the controller collects the vehicle speed signal in real time, and connects the vehicle's instrument and ESP system, so as to control the instrument to send a corresponding alarm signal according to the internal state signal of the rear axle housing and the vehicle speed signal, and / or control the driving state of the vehicle through the ESP system.

[0086] Specifically, when it is determined that the oil pressure signal is not greater than the first preset pressure threshold, it is determined that the oil is leaking. After the vehicle is started, the pressure signal detected by sensor 2 shows an abnormality. After receiving the corresponding signal, the controller transmits it to the instrument. The instrument sends a first preset alarm signal to remind the driver that the vehicle is leaking oil and needs to be refilled. It also prompts the driver with a loud sound and / or flashes the light with a high frequency to ensure that the driver's attention is drawn. At the same time, the controller receives the vehicle speed signal to determine the driving state of the vehicle. If the driver has not stopped to refill the oil, the controller sends a control signal to the ESP system to make the braking system work and force the vehicle to stop until the oil is detected. The controller cancels the brakes only after receiving the oil pressure signal transmitted by sensor 2, allowing the vehicle to continue driving. Thus, the problem of oil leakage inside the rear axle assembly, which leads to damage to parts and scrapping of the rear axle caused by dry grinding of internal gears and bearings, is fundamentally solved.

[0087] When it is determined that the oil pressure signal is greater than the second preset pressure threshold and not greater than the third preset pressure threshold, it is determined that the amount of oil in the rear axle assembly is too little. After the vehicle is started, the pressure signal detected by sensor 2 shows abnormality. After receiving the corresponding signal, the controller transmits it to the instrument. The instrument sends a second preset alarm signal to attract the driver's attention and remind the driver that the amount of oil is too little and oil needs to be added. If the driver does not add oil, the controller confirms the driving state of the vehicle through the vehicle speed signal and sends a control signal to the ESP system to control the vehicle to reduce the speed. The specific speed depends on the internal oil amount. For example: if the oil amount is between 60%-90%, the speed is controlled not to exceed 30KM / H; if the oil amount is between 30%-60%, the speed is controlled not to exceed 15KM / H, and the instrument continues to prompt the prompt signal of adding oil; if the oil amount is between 10%-30%, the speed is controlled not to exceed 5KM / H, and the instrument continues to prompt the prompt signal of adding oil.

[0088] Furthermore, if it is determined that the oil temperature signal is greater than a preset temperature threshold, that is, it is confirmed that the oil temperature is too high, the vehicle is forced to brake and stop, and the vehicle must wait until the temperature drops before it can continue to drive.

[0089] When it is determined that the oil foreign matter content signal is greater than the preset foreign matter content threshold, it is determined that there are more impurities in the oil in the rear axle assembly, such as more particulate matter or muddy water. After the vehicle is started, the impurity analysis signal detected by sensor 2 shows abnormality. After receiving the corresponding signal, the controller transmits it to the instrument. The instrument sends a third preset alarm signal to attract the driver's attention and remind the driver that the impurity content in the oil is high and the oil needs to be replaced. If the driver does not replace the oil, the controller confirms the driving status of the vehicle through the vehicle speed signal, and sends a control signal to the ESP system to control the vehicle to reduce the speed, thereby reducing the friction between the gears and bearings, and continuously sends the second preset alarm signal through the instrument to remind the driver to replace the oil.

[0090] In summary, in this specific embodiment, the vehicle is controlled by adding a controller to the rear axle assembly and adding a sensor 2 to the lower housing 5. The sensor 2 collects the internal state signal of the rear axle housing, and the controller is connected to the sensor 2, the instrument, the vehicle speed sensor and the ESP system, and determines the oil state inside the rear axle assembly by collecting various signals, and then performs the corresponding operations required, such as issuing different alarm signals and controlling the driving state of the vehicle, so as to effectively avoid the damage of the internal parts of the rear axle assembly, resulting in a reduction in the life of the parts. The embodiments of the present invention solve the problem that due to the limitation of the existing rear axle structure, the internal state of the rear axle housing, such as the oil state, cannot be simply confirmed from the outside, resulting in customer complaints such as gear oil leakage, impurities entering the gear oil, mud and water, too little gear oil, etc., resulting in the scrapping of the entire axle, gear and bearing damage, and reduced service life of parts, or the time-consuming and labor-intensive situation that the rear axle state can only be confirmed by going to a service station. The embodiment of the present invention enables the driver to understand the status of the rear axle assembly in time, increases the intelligence of the vehicle, and improves driving pleasure; and, for multiple situations such as oil leakage, insufficient oil, and impurities entering the oil, there are specific countermeasures and solutions, which fundamentally solves the problem of parts damage of the internal gears and bearings of the rear axle assembly due to oil shortage, insufficient oil, or impurities entering the oil, thereby improving the service life of the rear axle assembly, thereby improving the quality of the entire vehicle, and helping to improve customer satisfaction.

[0091] According to the vehicle control method of the embodiment of the present invention, a sensor 2 for detecting the internal state of the rear axle housing is arranged on the rear axle assembly of the vehicle, and the vehicle driving state signal and the rear axle housing internal state signal transmitted by the sensor 2 are obtained; according to the driving state signal and the rear axle housing internal state signal, the vehicle is controlled to send an alarm signal and / or control the driving state of the vehicle. Therefore, the method can simply, quickly and accurately detect the internal state of the rear axle housing through the sensor 2 arranged on the rear axle assembly, which saves time and effort and is low in cost, and controls the vehicle in combination with the driving state of the vehicle, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the rear axle assembly parts caused by abnormal oil in the rear axle housing, thereby improving the stability and reliability of the vehicle rear axle assembly, and further helping to improve the quality of the entire vehicle.

[0092] A further embodiment of the present invention also provides a vehicle control device. The vehicle is, for example, the vehicle described in any one of the above embodiments of the present invention, that is, the rear axle assembly of the vehicle includes a rear axle housing containing oil and a sensor for detecting the internal state of the rear axle housing. Therefore, for a detailed description of the vehicle, please refer to Figure 1-Figure 3 , and refer to the description of the vehicle in the previous text. To reduce redundancy, it will not be repeated here.

[0093] Figure 5FIG. 1 is a schematic diagram of the structure of a vehicle control device according to an embodiment of the present invention. Figure 5 As shown, the vehicle control device 100 includes: an acquisition module 110 and a control module 120 .

[0094] Specifically, the acquisition module 110 is used to acquire the driving state signal of the vehicle and the internal state signal of the rear axle housing detected by the sensor 2 .

[0095] The control module 120 is used to control the vehicle to send out an alarm signal and / or control the driving state of the vehicle according to the driving state signal and the internal state signal of the rear axle housing.

[0096] In one embodiment of the present invention, the driving status signal includes at least a vehicle speed signal; the rear axle housing internal status signal includes: at least one of an oil pressure signal corresponding to the oil, an oil foreign matter content signal and an oil temperature signal.

[0097] In one embodiment of the present invention, the control module 120 controls the vehicle to issue an alarm signal and / or controls the driving state of the vehicle according to the driving state signal and the internal state signal of the rear axle housing, including: if at least one of the oil pressure signal is not greater than the first preset pressure threshold and the oil temperature signal is greater than the preset temperature threshold, then the vehicle is controlled to issue a first preset alarm signal.

[0098] In one embodiment of the present invention, after controlling the vehicle to issue a first preset alarm signal, the control module 120 is used to: when the vehicle speed signal is greater than zero, control the vehicle to brake and maintain it in a stopped state until it is detected that the oil pressure signal changes to a value greater than a first preset pressure threshold, and / or the oil temperature signal is not greater than a preset temperature threshold, and then control the vehicle to release the brakes.

[0099] In one embodiment of the present invention, the control module 120 controls the vehicle to issue an alarm signal and / or controls the driving status of the vehicle based on the driving status signal and the internal status signal of the rear axle housing, including: if the oil pressure signal is greater than the second preset pressure threshold and not greater than the third preset pressure threshold, then controlling the vehicle to issue a second preset alarm signal.

[0100] In one embodiment of the present invention, after controlling the vehicle to send out two preset alarm signals, the control module 120 is used to: when the vehicle speed signal is greater than zero, control the vehicle speed according to the oil pressure signal, wherein the oil pressure signal is proportional to the vehicle speed, that is, the smaller the oil pressure signal, the lower the corresponding vehicle speed.

[0101] In one embodiment of the present invention, the control module 120 controls the vehicle to issue an alarm signal and / or controls the driving state of the vehicle according to the driving state signal and the internal state signal of the rear axle housing, including: if the oil foreign matter content signal is greater than the preset foreign matter content threshold, then controlling the vehicle to issue a third preset alarm signal.

[0102] In one embodiment of the present invention, after controlling the vehicle to issue three preset alarm signals, the control module 120 is used to: when the vehicle speed signal is greater than zero, control the vehicle speed according to the oil foreign matter content signal, wherein the oil foreign matter content signal is inversely proportional to the vehicle speed, that is, the larger the oil foreign matter content signal, the lower the corresponding vehicle speed.

[0103] It should be noted that when controlling the vehicle, the specific implementation method of the control device 100 of the vehicle is similar to the specific implementation method of the vehicle control method of any one of the above-mentioned embodiments of the present invention. Therefore, for a detailed exemplary description of the control device 100 of the vehicle, please refer to the relevant description part of the aforementioned vehicle control method. In order to reduce redundancy, it will not be repeated here.

[0104] A further embodiment of the present invention provides a vehicle, which is, for example, the vehicle described in any one of the above embodiments of the present invention.

[0105] Specifically, the vehicle includes a rear axle assembly and a controller.

[0106] Combination Figures 1 to 3 As shown, the rear axle assembly includes a rear axle housing 1 containing oil and a sensor 2 for detecting the state of the oil.

[0107] Specific, combined Figure 1 As shown, the rear axle assembly includes a rear axle housing 1 containing oil (such as gear oil) and a sensor 2 for detecting the internal state of the rear axle housing 1, such as the state of the oil. It is understandable that the sensor 2 may include multiple sensing units, and the multiple sensing units are integrated to form the sensor 2, so that the sensor 2 can perform multiple state analysis and detection on the oil, such as oil quantity detection, oil impurity detection, oil temperature detection, etc. Specifically, the sensor 2 can be immersed in the oil inside the rear axle housing 1, thereby accurately detecting the state of the oil.

[0108] Combination Figure 2 As shown, the rear axle housing 1 includes an upper housing 6 and a lower housing 5. The upper housing 6 and the lower housing 5 are connected by an intermediate connecting component 9 to form a chamber for containing the oil, and the chamber can contain the oil.

[0109] Furthermore, the rear axle housing 1 further includes a refueling port 8 and an oil drain hole 7. Specifically, when refueling, oil can be added into the rear axle housing 1 through the refueling port 8; when the oil needs to be replaced, the oil in the rear axle housing 1 can be released through the oil drain hole 7, and after the oil is released, new oil can be added through the refueling port 8, thereby achieving oil replacement.

[0110] Specifically, combined Figure 1 As shown, the sensor 2 can be arranged on the lower housing 5 of the rear axle housing 1, thereby accurately detecting the oil pressure signal and the like, thereby facilitating accurate determination of the oil state.

[0111] Further, the sensor 2 may be arranged on the other side of the lower shell 5 relative to the oil drain hole 7 , that is, the oil drain hole 7 is arranged on one side of the lower shell 5 , and the sensor 2 is arranged on the other side of the lower shell 5 .

[0112] In one embodiment of the present invention, Figure 1 As shown, the height of the position where the sensor 2 is located is higher than the preset position of the lower housing 5. Specifically, the preset position can be selected according to actual needs, and the selection basis is to ensure the passability of the vehicle. That is to say, after the preset position is selected, when the height of the sensor 2 is set at a position higher than the preset position of the lower housing 5, the vehicle can pass smoothly, thereby avoiding affecting the passability of the vehicle. In a specific embodiment, the preset position is, for example, the lowest point at the bottom of the lower housing 5, for example Figure 3 As shown, when the setting height of the sensor 2 is higher than the lowest point of the lower shell 5, the vehicle's passability will not be affected.

[0113] In one embodiment of the present invention, the sensor 2 is disposed within a preset height range above a preset position of the lower housing 5. In a specific embodiment, the preset height range is, for example, 20-30 mm, that is, the sensor 2 is disposed within a preset position of the lower housing 5, such as within a range of 20-30 mm above the lowest point, thereby avoiding affecting the vehicle's passability while further avoiding affecting the detection of the internal state of the rear axle housing (such as the oil state), thereby improving the accuracy of the detection of the internal state of the rear axle housing.

[0114] In other words, the sensor 2 should be set higher than the lowest point of the lower housing 5, otherwise it will affect the vehicle's passability, but it should not be set too high, otherwise it will affect the collection of the internal state detection signal of the rear axle housing, thereby affecting the accuracy of the detection result. Preferably, the sensor 2 is set at a height within a range of 20 mm to 30 mm above the lowest point of the lower housing 5.

[0115] Combination Figure 3As shown, the sensor 2 can be arranged in the sensor mounting housing 3, thereby protecting the sensor 2. Specifically, the sensor mounting housing 3 is configured as a raised structure, and the sensor 2 is placed in the raised structure. That is, a raised structure for placing the sensor 2 is opened at the bottom of the lower housing 5 relative to the oil drain hole 7, so that the sensor 2 can be placed. Further, as Figure 3 As shown, a small hole, namely the wiring harness plug-in port 4, is opened on the outside of the sensor mounting housing 3 for the wiring harness connector to connect the wiring harness. The convex structure can be realized by stamping, and has a simple structure and is easy to manufacture.

[0116] The controller is used to execute the vehicle control method described in any one of the above embodiments of the present invention.

[0117] Combination Figure 1-Figure 3 , the sensor 2 is placed on the lower housing 5 of the rear axle housing 1, specifically placed in the sensor mounting housing 3 for protection, the sensor 2 penetrates into the oil, and constantly collects the internal state signal of the rear axle housing, such as the oil foreign matter content (i.e., impurity content) signal, the oil pressure signal, and the internal oil temperature signal, etc., so that the internal state of the rear axle housing, such as the oil state, can be detected simply, quickly, and accurately, saving time, labor, and cost. The sensor 2 is connected to the vehicle controller, and the collected rear axle housing internal state signal is constantly sent to the controller for analysis and processing. At the same time, the controller constantly collects the vehicle speed signal, and controls the vehicle in combination with the rear axle housing internal state signal and the speed signal, so as to effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the rear axle assembly parts caused by abnormal oil in the rear axle housing 1, thereby improving the stability and reliability of the vehicle rear axle assembly, and further contributing to improving the quality of the entire vehicle.

[0118] It should be noted that when the vehicle is controlled through the controller, its specific implementation method is similar to the specific implementation method of the vehicle control method of any one of the above-mentioned embodiments of the present invention. Therefore, for a detailed exemplary description of the control process of the vehicle, please refer to the relevant description part of the aforementioned vehicle control method. In order to reduce redundancy, it will not be repeated here.

[0119] According to the vehicle of the embodiment of the present invention, the rear axle assembly is provided with a sensor 2 for detecting the internal state of the rear axle housing, and the vehicle is controlled to send out an alarm signal and / or control the vehicle's driving state by acquiring the vehicle's driving state signal and the rear axle housing internal state signal transmitted by the sensor 2; according to the driving state signal and the rear axle housing internal state signal, the vehicle can be controlled to send out an alarm signal and / or control the vehicle's driving state. Therefore, the vehicle can simply, quickly and accurately detect the internal state of the rear axle housing through the sensor 2 provided on the rear axle assembly, which saves time and effort and is low in cost, and the vehicle can be controlled in combination with the vehicle's driving state, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the rear axle assembly parts caused by abnormal oil in the rear axle housing, thereby improving the stability and reliability of the vehicle's rear axle assembly, and further contributing to improving the quality of the entire vehicle.

[0120] A further embodiment of the present invention also discloses a computer-readable storage medium, on which a vehicle control program is stored. When the vehicle control program is executed by a processor, the vehicle control method described in any one of the above embodiments of the present invention is implemented.

[0121] According to the computer-readable storage medium of the embodiment of the present invention, when the control program of the vehicle stored thereon is executed by the processor, the driving state signal of the vehicle and the internal state signal of the rear axle housing transmitted by the sensor arranged on the rear axle housing are obtained; according to the driving state signal and the internal state signal of the rear axle housing, the vehicle is controlled to send out an alarm signal and / or the driving state of the vehicle is controlled. Therefore, the internal state of the rear axle housing can be simply, quickly and accurately detected by the sensor arranged on the rear axle assembly, which saves time, labor and cost, and controls the vehicle in combination with the driving state of the vehicle, which can effectively avoid the scrapping of the entire axle, damage to gears and bearings, and reduced service life of the parts of the rear axle assembly caused by abnormal oil in the rear axle housing, thereby improving the stability and reliability of the rear axle assembly of the vehicle, and further contributing to improving the quality of the entire vehicle.

[0122] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0123] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle control method, characterized in that: The rear axle assembly of the vehicle includes a rear axle housing containing oil and a sensor for detecting the internal state of the rear axle housing, and the control method includes the following steps: Acquire a driving state signal of the vehicle and an internal state signal of the rear axle housing transmitted by the sensor, wherein the driving state signal at least includes a vehicle speed signal of the vehicle, and the internal state signal of the rear axle housing includes: an oil pressure signal corresponding to the oil, an oil foreign matter content signal, and an oil temperature signal; Controlling the vehicle to send out an alarm signal and / or controlling the driving state of the vehicle according to the driving state signal and the internal state signal of the rear axle housing; If the oil pressure signal is greater than a second preset pressure threshold and not greater than a third preset pressure threshold, controlling the vehicle to issue a second preset alarm signal; If the vehicle speed signal is greater than zero, the vehicle speed is controlled according to the oil pressure signal, wherein the oil pressure signal is proportional to the vehicle speed.

2. The vehicle control method according to claim 1, characterized in that: According to the driving state signal and the internal state signal of the rear axle housing, controlling the vehicle to send out an alarm signal and / or controlling the driving state of the vehicle comprises: If at least one of the oil pressure signal is not greater than a first preset pressure threshold and the oil temperature signal is greater than a preset temperature threshold is satisfied, the vehicle is controlled to issue a first preset alarm signal.

3. The vehicle control method according to claim 2, characterized in that: After controlling the vehicle to send out a first preset alarm signal, the method includes: If the vehicle speed signal is greater than zero, the vehicle is controlled to brake and maintain a stopped state until it is detected that the oil pressure signal changes to be greater than the first preset pressure threshold, and / or the oil temperature signal is not greater than the preset temperature threshold, and the vehicle is controlled to release the brakes.

4. The vehicle control method according to claim 1, characterized in that: According to the driving state signal and the internal state signal of the rear axle housing, controlling the vehicle to send out an alarm signal and / or controlling the driving state of the vehicle comprises: If the oil foreign matter content signal is greater than a preset foreign matter content threshold, the vehicle is controlled to send out a third preset alarm signal.

5. The vehicle control method according to claim 4, characterized in that: After the vehicle is controlled to send out three preset alarm signals, the method includes: If the vehicle speed signal is greater than zero, the vehicle speed is controlled according to the oil foreign matter content signal, wherein the oil foreign matter content signal is inversely proportional to the vehicle speed.

6. A vehicle control device, characterized in that: The rear axle assembly of the vehicle includes a rear axle housing containing oil and a sensor for detecting the internal state of the rear axle housing, and the control device includes: an acquisition module, used for acquiring a driving state signal of the vehicle and an internal state signal of the rear axle housing detected by the sensor, wherein the driving state signal at least includes a vehicle speed signal of the vehicle, and the internal state signal of the rear axle housing includes: an oil pressure signal, an oil foreign matter content signal and an oil temperature signal corresponding to the oil; A control module is used to control the vehicle to issue an alarm signal and / or control the driving state of the vehicle according to the driving state signal and the internal state signal of the rear axle housing; if the oil pressure signal is greater than a second preset pressure threshold and not greater than a third preset pressure threshold, control the vehicle to issue a second preset alarm signal; if the vehicle speed signal is greater than zero, control the vehicle speed according to the oil pressure signal, wherein the oil pressure signal is proportional to the vehicle speed.

7. A vehicle, characterized in that: include: A rear axle assembly, the rear axle assembly comprising a rear axle housing containing oil and a sensor for detecting an internal state of the rear axle housing; A controller, wherein the controller is used to execute the vehicle control method as described in any one of claims 1-5.

8. The vehicle according to claim 7, characterized in that The rear axle housing comprises: An upper shell and a lower shell, wherein the upper shell and the lower shell are connected by an intermediate connecting component to form a chamber for containing the oil; An oil drain hole, the oil drain hole being arranged on one side of the lower shell; The sensor is arranged on the other side of the lower housing relative to the oil drain hole.

9. The vehicle according to claim 8, characterized in that The height of the position where the sensor is located is higher than the preset position of the lower shell.

10. The vehicle according to claim 8 or 9, characterized in that The sensor is arranged within a preset height range above a preset position of the lower shell.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a vehicle control program, and when the vehicle control program is executed by a processor, the vehicle control method according to any one of claims 1 to 5 is implemented.

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