Water wading control method, device and electronic equipment for hybrid vehicle

Abstract

The present invention discloses a method for controlling wading of a hybrid vehicle. When the hybrid vehicle is wading, a first wading depth of the hybrid vehicle is obtained; if the first wading depth is greater than a set depth, the range extender of the hybrid vehicle is controlled to be in a start state, and a first battery state of charge of the hybrid vehicle is obtained; it is determined whether the first battery state of charge is greater than a set battery charge; if the first battery state of charge is greater than the set battery charge, the current operating condition of the range extender is controlled to be a first set operating condition, and when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque. The method, device and electronic device for controlling wading of a hybrid vehicle disclosed in the present invention can effectively reduce the probability of water backflowing into the exhaust system of the vehicle, can reduce the probability of damage to the engine aftertreatment system and even engine flooding, and improve the service life of the engine.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a water wading control method, device and electronic equipment for a hybrid vehicle. Background Art

[0002] With the rapid development of automobile technology, automobiles have become a common means of transportation for people's daily travel, which has led to a rapid increase in the number of hybrid vehicles. In actual use, hybrid vehicles often wade in water. When hybrid vehicles wade in water, if the wading depth is high, if the range extender does not work, the probability of water backflowing into the exhaust system of the vehicle increases, resulting in damage to the engine aftertreatment system and even a high probability of engine flooding. Summary of the invention

[0003] The embodiments of the present invention provide a water wading control method, device and electronic equipment for a hybrid vehicle, which can effectively reduce the probability of water backflowing into the exhaust system of the vehicle, reduce the probability of damage to the engine after-treatment system and even engine flooding, and increase the service life of the engine.

[0004] A first aspect of an embodiment of the present invention provides a wading control method for a hybrid vehicle, the method comprising:

[0005] When the hybrid vehicle is in a wading condition, obtaining a first wading depth of the hybrid vehicle;

[0006] If the first wading depth is greater than a set depth, controlling a range extender of the hybrid vehicle to be in an activated state, and obtaining a first battery state of charge of the hybrid vehicle;

[0007] Determining whether the first battery state of charge is greater than a set battery state of charge;

[0008] If the first battery state of charge is greater than the set battery charge, the current operating condition of the range extender is controlled to be a first set operating condition, and when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque.

[0009] Optionally, after controlling the current operating condition of the range extender to be the first set operating condition, the method further includes:

[0010] obtaining a second wading depth of the hybrid vehicle;

[0011] When it is determined that the second wading depth is not greater than the set depth, the range extender is controlled to be in a closed state.

[0012] Optionally, after determining whether the first battery state of charge is greater than a set battery state of charge, the method further includes:

[0013] If the first battery state of charge is not greater than the set battery charge, the current operating condition of the range extender is controlled to be a second set operating condition, and when the range extender is in the second set operating condition, the second torque of the range extender is higher than the set torque.

[0014] Optionally, after controlling the current operating condition of the range extender to be a second set operating condition, the method further includes:

[0015] Acquire a third wading depth and a second battery state of charge of the hybrid vehicle;

[0016] If the third wading depth is not greater than the set depth, and the second battery state of charge is greater than the set battery charge, the range extender is controlled to be in the off state.

[0017] Optionally, after obtaining the third wading depth and the second battery state of charge of the hybrid vehicle, the method further includes:

[0018] If the third wading depth is greater than the set depth and the second battery state of charge is greater than the set battery charge, the current operating condition of the range extender is controlled to be the third set operating condition. When the range extender is in the third set operating condition, the third torque of the range extender is less than the first torque.

[0019] Optionally, after controlling the current operating condition of the range extender to be a third set operating condition, the method further includes:

[0020] obtaining a fourth wading depth of the hybrid vehicle;

[0021] When it is determined that the fourth wading depth is not greater than the set depth, the range extender is controlled to be in the closed state.

[0022] Optionally, after obtaining the first wading depth of the hybrid vehicle, the method further includes:

[0023] If the first wading depth is not greater than the set depth, the range extender state of the hybrid vehicle is controlled to remain unchanged.

[0024] A second aspect of an embodiment of the present invention further provides a wading control device for a hybrid vehicle, the device comprising:

[0025] a wading depth acquisition unit, configured to acquire a first wading depth of the hybrid vehicle when the hybrid vehicle is in a wading condition;

[0026] a state of charge acquisition unit, configured to control the range extender of the hybrid vehicle to be in an activated state and acquire a first battery state of charge of the hybrid vehicle if the first wading depth is greater than a set depth;

[0027] A judging unit, configured to judge whether the first battery state of charge is greater than a set battery state of charge;

[0028] An operating condition control unit is used to control the current operating condition of the range extender to be a first set operating condition if the first battery state of charge is greater than the set battery charge, and when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque.

[0029] Optionally, also include:

[0030] The judging unit is configured to judge whether the first battery state of charge is lower than the set battery state of charge after acquiring the first battery state of charge of the hybrid vehicle.

[0031] A third aspect of an embodiment of the present invention provides an electronic device, comprising a memory and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by one or more processors to execute operating instructions corresponding to the one or more programs for performing the water wading control method for a hybrid vehicle as provided in the first aspect.

[0032] A fourth aspect of an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps corresponding to the method for controlling wading of a hybrid vehicle provided in the first aspect.

[0033] The above one or at least one technical solution in the embodiments of the present application has at least the following technical effects:

[0034] Based on the above technical solution, when the hybrid vehicle is in a wading condition, if the first wading depth of the hybrid vehicle is greater than the set depth, the range extender of the hybrid vehicle is controlled to be in a start-up state, and the first battery state of charge of the hybrid vehicle is obtained; it is determined whether the first battery state of charge is greater than the set battery charge; if the first battery state of charge is greater than the set battery charge, the current operating condition of the range extender is controlled to be the first set operating condition, and when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque; it can be seen that when the first wading depth of the hybrid vehicle is greater than the set depth, the range extender is controlled to be in a start-up state. By controlling the range extender to be in a start-up state, the probability of water backflowing into the exhaust system of the vehicle can be effectively reduced, the probability of damage to the engine after-treatment system or even engine flooding can be reduced, the probability of malfunction of the hybrid vehicle can be reduced, and the service life of the engine can be increased.

[0035] Furthermore, since the range extender of the hybrid vehicle is in a start-up state and it is determined that the first battery state of charge is greater than the set battery charge, the current operating condition of the range extender is controlled to be the first set operating condition. At this time, when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque. In this way, by controlling the first torque not to be higher than the set torque when the range extender is in the first set operating condition, the power of the range extender in the first set operating condition is lower. Under the condition of lower power, the efficiency of the range extender charging the battery pack of the hybrid vehicle will also be reduced, thereby reducing the probability of overcharging of the battery pack, and further reducing the probability of damage to the battery pack due to overcharging, so as to increase the service life of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic flow chart of a water wading control method for a hybrid vehicle provided in an embodiment of the present application;

[0037] Figure 2 A diagram of the implementation steps of the water wading control method for a hybrid vehicle provided in an embodiment of the present application;

[0038] Figure 3 A block diagram of a wading control device for a hybrid vehicle provided in an embodiment of the present application;

[0039] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] The main implementation principles, specific implementation methods and corresponding beneficial effects of the technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0041] Example

[0042] Please refer to Figure 1 , an embodiment of the present application provides a wading control method for a hybrid vehicle, the method comprising:

[0043] S101, when a hybrid vehicle is in a wading condition, obtaining a first wading depth of the hybrid vehicle;

[0044] S102: If the first wading depth is greater than a set depth, controlling a range extender of the hybrid vehicle to be in an activated state, and obtaining a first battery state of charge of the hybrid vehicle;

[0045] S103, determining whether the first battery state of charge is greater than a set battery state of charge;

[0046] S104: If the first battery state of charge is greater than the set battery state of charge, controlling the current operating condition of the range extender to be a first set operating condition, and when the range extender is in the first set operating condition, a first torque of the range extender is not higher than a set torque.

[0047] The wading control method for a hybrid vehicle in the embodiments of this specification is generally applied in a vehicle-mounted terminal of the hybrid vehicle; further, the wading condition refers to a situation where the hybrid vehicle is in a wading scenario and the speed of the hybrid vehicle is lower than a set speed. The set speed may be set according to actual needs or may be set by the terminal or manually. The set speed may be, for example, 20km / h, 25km / h, and 35km / h.

[0048] Among them, in step S101, a wading sensor arranged at the front position of the hybrid vehicle can be used to detect whether the hybrid vehicle is in a wading condition. If the wading sensor detects that the hybrid vehicle is in a wading scene, it is determined that the hybrid vehicle is in a wading condition. At this time, the height of the water surface at the location of the hybrid vehicle relative to the chassis of the hybrid vehicle is obtained by the wading sensor as the first wading depth.

[0049] The wading depth in the embodiments of this specification refers to the height of the current water surface relative to the chassis of the hybrid vehicle.

[0050] After the first wading depth is obtained, before executing step S102, it is determined whether the first wading depth is greater than a set depth, wherein the set depth may be determined according to the location of the front exhaust pipe of the hybrid vehicle, and the set depth may be no greater than the distance between the location of the front exhaust pipe and the tire contact point of the hybrid vehicle; in this way, when it is determined that the first wading depth is no greater than the set depth, the front exhaust pipe is located on the water level line, and there is no risk of water backflow, so that the state of the range extender of the hybrid vehicle can be controlled unchanged; when it is determined that the first wading depth is greater than the wading depth, step S102 is executed, wherein, when the first wading depth is greater than the wading depth, the front exhaust pipe is usually parallel to the water level line or located below the water level line, so that the probability of water backflowing into the front exhaust pipe is increased.

[0051] In step S102, when the first wading depth is greater than the wading depth, there is an increased probability that water flows back into the front-stage exhaust pipe. In this case, it is necessary to start the range extender, thereby controlling the range extender to be in a started state, thereby increasing the torque of the hybrid vehicle and increasing the exhaust pressure discharged from the exhaust pipe. When the torque is increased, the hybrid vehicle has more power, and the probability of the hybrid vehicle stalling due to potholes and obstacles in the wading scene is reduced. In addition, since the exhaust pressure discharged from the exhaust pipe is increased, the probability of water flowing back into the exhaust system through the front-stage exhaust pipe can also be reduced. On the basis of the reduced probability of water flowing back into the exhaust system, the probability of water flowing back into the engine, causing damage to the engine after-treatment system or even engine flooding, can also be reduced. On the basis of the reduced probability of damage to the engine after-treatment system or even engine flooding, the probability of hybrid vehicle failure will also be reduced, and the service life of the engine can be increased.

[0052] Furthermore, when the range extender is controlled to be in the start-up state, it is also necessary to obtain the first battery state of charge of the hybrid vehicle. At this time, the first battery state of charge (State Of Charge, SOC for short) of the hybrid vehicle can be obtained through a charge sensor.

[0053] In the embodiments of this specification, SOC is usually expressed in percentage, and SOC can be, for example, 10%, 80%, 85%, etc. The value range of SOC is between 0 and 100%.

[0054] After the first SOC is acquired, step S103 is executed.

[0055] In step S103, it is determined whether the first SOC is greater than a set battery charge, wherein the set battery charge may be set according to actual needs or may be set manually or by the terminal itself. The set battery charge may be, for example, 90%, 95%, 85%, etc., and this specification does not impose any specific limitation.

[0056] Specifically, if it is determined that the SOC is greater than the set battery charge, step S104 is executed; if it is determined that the SOC is not greater than the set battery charge, the current operating condition of the range extender is controlled to be the second set operating condition. When the range extender is in the second set operating condition, the second torque of the range extender is higher than the set torque.

[0057] In step S104, when the first battery state of charge is greater than the set battery charge, at this time, the battery state of charge of the battery pack representing the hybrid vehicle is high, so that the probability of overcharging of the battery pack is high, and the current operating condition of the range extender is controlled to be the first set operating condition, and when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque. It can be seen that since the first torque of the range extender is not higher than the set torque, and the torque is proportional to the power, when the first torque is low, the power of the range extender is also low. Under the condition of low power, the efficiency of the range extender charging the battery pack of the hybrid vehicle will also be reduced, thereby reducing the probability of battery overcharging of the battery pack, and further reducing the probability of battery damage due to overcharging, so as to increase the service life of the battery pack.

[0058] Among them, the set torque can be determined according to the actual torque of the range extender, for example, it can be determined according to the minimum torque or intermediate torque of the range extender. Preferably, the set torque can be the intermediate torque of the range extender or the product of the intermediate torque and the weight, etc. The set torque can be, for example, 80Nm (Newton meters), 85Nm and 65Nm, etc. In this way, when the range extender is in the first set operating condition, it can provide a certain power for the hybrid vehicle and reduce the probability of excessive power causing excessive charging efficiency of the battery pack.

[0059] In the embodiment of this specification, the first set operating condition can also set the speed of the range extender. For example, under the first set operating condition, the speed of the range extender is 1600rpm (rotations per minute), 1500rpm and 1200rpm, etc., and the first torque is 80Nm, 70Nm and 90Nm, etc. Preferably, under the first set operating condition, the speed of the range extender is 1600rpm and the first torque is 80Nm, which is expressed as 1600rpm / 80Nm.

[0060] And, when it is determined that the SOC is not greater than the set battery charge, the current operating condition of the range extender is controlled to be the second set operating condition, and when the range extender is in the second set operating condition, the second torque of the range extender is higher than the set torque. When the first battery state of charge is not greater than the set battery charge, at this time, the battery state of charge of the battery pack of the hybrid vehicle is low, so that the probability of overcharging the battery pack is low, and by controlling the current operating condition of the range extender to be the second set operating condition, and when the range extender is in the second set operating condition, the second torque of the range extender is higher than the set torque, it can be seen that since the second torque of the range extender is higher than the set torque, and the torque is proportional to the power, when the second torque is higher, the power of the range extender is also higher, and when the power is higher, the efficiency of the range extender charging the battery pack of the hybrid vehicle will also increase accordingly, thereby improving the efficiency of charging the battery pack, thereby reducing the probability of shortening the battery pack life due to the low battery state of charge of the battery pack, and improving the service life of the battery pack.

[0061] Since the set torque can be the intermediate torque of the range extender or the product of the intermediate torque and the weight, the set torque can be, for example, 80Nm, 85Nm and 65Nm, so that when the range extender is in the second set working condition, since the second torque of the range extender is higher than the set torque, the power of the range extender is also higher, so that it can provide higher power for the hybrid vehicle and also have some surplus power to charge the battery pack, thereby improving the charging efficiency of the battery pack.

[0062] In the embodiment of this specification, the second setting condition can also set the speed of the range extender. For example, the speed of the range extender under the second setting condition is 1600rpm (rotation times per minute), 1500rpm and 1200rpm, etc., and the second torque is 220Nm, 200Nm and 240Nm, etc. Preferably, the speed of the range extender under the second setting condition is 1600rpm and the second torque is 220Nm, which is expressed as 1600rpm / 220Nm. In addition, the speed of the range extender under the second setting condition and the first setting condition can be the same or different, and this specification does not make specific restrictions.

[0063] For example, taking hybrid vehicle A as an example, when a wading sensor set at the front position of A detects that A is in a wading condition, the first wading depth of A obtained by the wading sensor is 500mm (millimeter). If the depth is set to 400mm, since 500>400, the range extender of A is controlled to be in the start state, and the first SOC of A is obtained to be 92%. If the battery charge is set to 90%, since 92%>90%, the current operating condition of the range extender is controlled to be the first set operating condition, wherein the first set operating condition of the range extender is 1600rpm / 80Nm; if the first SOC of A is obtained to be 85%, since 85%<90%, the current operating condition of the range extender is controlled to be the second set operating condition, wherein the second set operating condition of the range extender is 1600rpm / 220Nm.

[0064] In another embodiment, after the current operating condition of the range extender is controlled to be the first set operating condition, the current wading depth of the hybrid vehicle is continuously obtained through the wading sensor as the second wading depth, and it is determined whether the second wading depth is greater than the set depth. When it is determined that the second wading depth is greater than the set depth, step S104 is continued to be executed; when it is determined that the second wading depth is not greater than the set depth, the range extender is controlled to be in an off state.

[0065] In the specific implementation process, after the current operating condition of the range extender is controlled to be the first set operating condition, the second wading depth continues to be obtained in real time through the wading sensor, and when it is first determined at a certain moment that the second wading depth is not greater than the set depth, the range extender is controlled to be in the off state.

[0066] Specifically, when it is determined that the second wading depth is not greater than the set depth, the wading depth of the hybrid vehicle is changed from the first wading depth to the second wading depth, and the first wading depth>set depth≥second wading depth, so that the front-stage exhaust pipe is moved from a position located at the water level or parallel to the water level to a position located at the water level, so that the probability of water backflowing into the front-stage exhaust pipe becomes extremely low, and the wading depth becomes shallower, so that the resistance of water to the hybrid vehicle becomes smaller, so that the range extender is no longer needed to provide power. In this way, the range extender needs to be turned off so that the range extender is in an off state to reduce the probability of overcharging of the battery pack due to most of the power provided by the range extender being used to charge the battery pack.

[0067] In another embodiment, after controlling the current operating condition of the range extender to be the second set operating condition, the current wading depth of the hybrid vehicle can continue to be obtained through the wading sensor as the third wading depth, and the current battery state of charge of the hybrid vehicle can continue to be obtained through the charge sensor as the second battery state of charge, and the second battery state of charge is specifically represented by the second SOC below; and, after obtaining the third wading depth and the second SOC, it is determined whether the third wading depth is greater than the set depth, and whether the second SOC is greater than the set battery charge; if the third wading depth is not greater than the set depth, and the second SOC is greater than the set battery charge, the range extender is controlled to be in an off state.

[0068] Since the third wading depth is not greater than the set depth, the wading depth of the hybrid vehicle changes from the first wading depth to the third wading depth, and the first wading depth>set depth≥third wading depth, so that the front-stage exhaust pipe moves from a position located at the water level or parallel to the water level to a position located at the water level, so that the probability of water backflowing into the front-stage exhaust pipe becomes extremely low, and the shallower wading depth reduces the resistance of water to the hybrid vehicle, and the second SOC is greater than the set battery charge, so that the battery pack has a higher power, and the range extender is no longer needed to provide power. In this way, the range extender needs to be turned off so that the range extender is in an off state to reduce the probability of overcharging of the battery pack due to the fact that most of the power provided by the range extender is used to charge the battery pack.

[0069] And, after obtaining the third wading depth and the second battery charge state of the hybrid vehicle, if it is determined that the third wading depth is greater than the set depth and the second SOC is greater than the set battery charge, the current operating condition of the range extender is controlled to be the third set operating condition. When the range extender is in the third set operating condition, the third torque of the range extender is less than the first torque. At this time, since the third wading depth is greater than the set depth, the front exhaust pipe is still located at the water level or parallel to the water level, resulting in a high probability of water backflow, and the second SOC is greater than the set battery charge. At this time, the battery charge state of the battery pack representing the hybrid vehicle is high, resulting in a high probability of battery pack overcharge. In this way, it is necessary to further reduce the power of the range extender so that the remaining power of the range extender other than providing power to the hybrid vehicle is smaller. When the remaining power is smaller, the efficiency of charging the battery pack with the remaining power of the range extender will also be further reduced, thereby further reducing the probability of battery overcharge of the battery pack, thereby reducing the probability of battery damage due to overcharging, and improving the service life of the battery pack.

[0070] Since the third torque is less than the first torque, and the set torque can be the intermediate torque of the range extender or the product of the intermediate torque and the weight, the set torque can be, for example, 80Nm, 85Nm and 65Nm, so that when the range extender is in the third set working condition, since the third torque of the range extender is less than the first torque, that is, the third torque < first torque ≤ set torque, the power of the range extender is further reduced, so that the remaining power of the range extender other than that provided to the hybrid vehicle is smaller.

[0071] In the embodiment of this specification, the third setting condition can also set the speed of the range extender. For example, under the third setting condition, the speed of the range extender is 1600rpm (rotations per minute), 1500rpm and 1200rpm, etc., and the third torque is 20Nm, 21Nm and 40Nm, etc. Preferably, the speed of the range extender under the third setting condition is 1600rpm and the third torque is 21Nm, which is represented by 1600rpm / 21Nm. In addition, the speed of the range extender under the third setting condition and the first setting condition can be the same or different, and this specification does not make specific restrictions.

[0072] In another embodiment, after controlling the current operating condition of the range extender to be the third set operating condition, the current wading depth of the hybrid vehicle can continue to be obtained through the wading sensor as the fourth wading depth; and determine whether the second wading depth is greater than the set depth. When it is determined that the second wading depth is greater than the set depth, the current operating condition of the range extender continues to be controlled to be the third set operating condition; when it is determined that the fourth wading depth is not greater than the set depth, the range extender is controlled to be in an off state.

[0073] Specifically, when it is determined that the fourth wading depth is not greater than the set depth, the wading depth of the hybrid vehicle is changed from the third wading depth to the fourth wading depth, and the third wading depth>set depth≥fourth wading depth, so that the front-stage exhaust pipe is moved from a position located at the water level or parallel to the water level to a position located at the water level, so that the probability of water backflowing into the front-stage exhaust pipe becomes extremely low, and the wading depth becomes shallower, so that the resistance of water to the hybrid vehicle becomes smaller, so that the range extender is no longer needed to provide power. In this way, the range extender needs to be turned off so that the range extender is in an off state to reduce the probability of overcharging of the battery pack due to most of the power provided by the range extender being used to charge the battery pack.

[0074] For example, taking hybrid vehicle A as an example, if the set depth is 400mm, since the first wading depth 500>400, the range extender of A is controlled to be in the start-up state, and the first SOC of A is obtained to be 92%. If the battery charge is set to 90%, since 92%>90%, the current operating condition of the range extender is controlled to be the first set operating condition, wherein the first set operating condition of the range extender is 1600rpm / 80Nm; after the current operating condition of the range extender is controlled to be the first set operating condition, the second wading depth is obtained in real time through the wading sensor, and it is determined in real time whether the second wading depth is greater than 400. If the second wading depth is determined to be 390≤400 for the first time at a certain moment, the range extender is turned off, and then the range extender is controlled to be in the off state; if it is determined that the second wading depth is greater than 400, the current operating condition of the range extender continues to be controlled to be the first set operating condition.

[0075] Among them, if the first SOC of A is obtained to be 85%, since 85%<90%, the current operating condition of the range extender is controlled to be the second set operating condition, wherein the second set operating condition of the range extender is 1600rpm / 220Nm; and after the current operating condition of the range extender is controlled to be the second set operating condition, the third wading depth is obtained in real time through the wading sensor, and the second SOC is obtained in real time through the charge sensor, and it is judged in real time whether the third wading depth is greater than 400, and it is judged in real time whether the second SOC is greater than 90%; if at a certain moment it is judged that the third wading depth is 370≤400, and the second SOC is 91%>90%, the range extender is controlled to be in a closed state; if at a certain moment it is judged that the third wading depth is 450>400, and the second SOC is 93%>90%, the current operating condition of the range extender is controlled to be the third set operating condition, and the third set operating condition of the range extender is 1600rpm / 21Nm.

[0076] Furthermore, after controlling the current operating condition of the range extender to be the third set operating condition, obtaining the fourth wading depth in real time through the wading sensor to determine whether the fourth wading depth is greater than 400; when determining that the fourth wading depth is, for example, 420>400, continuing to control the current operating condition of the range extender to be the third set operating condition; when determining that the fourth wading depth is, for example, 350<400, controlling the range extender to be in an off state.

[0077] In actual application, see Figure 2 , firstly, execute step S20, start the wading camera, determine whether the hybrid vehicle is in a wading condition, and when it is determined that the hybrid vehicle is in a wading condition, obtain a first wading depth through the wading camera; then execute step S21, determine whether the first wading depth is greater than a set depth; if not, execute step S22, control the range extender to remain unchanged, if the range extender is in an off state at this time, keep the range extender in an off state; if the range extender is in an on state at this time, keep the range extender in an on state;

[0078] Among them, if it is judged that the first wading depth is greater than the set depth, step S23 is executed, the range extender is controlled to be in the start state, and the first SOC is obtained; then step S24 is executed to determine whether the first SOC is greater than the set battery charge; if the first SOC is greater than the set battery charge, step S25 is executed to control the current operating condition of the range extender to be the first set operating condition; after step S25, step S26 is executed to determine whether the second wading depth is not greater than the set depth; if greater, step 25 is continued to be executed; if not greater, step S27 is executed to control the range extender to be in the off state.

[0079] And, if the first SOC is not greater than the set battery charge, step S28 is executed to control the current operating condition of the range extender to be the second set operating condition; then step S29 is executed to determine whether the third wading depth is greater than the set depth, and whether the second SOC is greater than the set battery charge; if the third wading depth is not greater than the set depth and the second SOC is greater than the set battery charge, step S30 is executed to control the range extender to be in an off state; if the third wading depth is greater than the set depth and the second SOC is greater than the set battery charge, step S31 is executed to control the current operating condition of the range extender to be the third set operating condition; after executing step S31, step 32 is executed to determine whether the fourth wading depth is greater than the set depth; if it is greater, step S31 is continued to be executed; if it is not, step S33 is executed to control the range extender to be in an off state.

[0080] The above one or at least one technical solution in the embodiments of the present application has at least the following technical effects:

[0081] Based on the above technical solution, when the hybrid vehicle is in a wading condition, if the first wading depth of the hybrid vehicle is greater than the set depth, the range extender of the hybrid vehicle is controlled to be in a start-up state, and the first battery state of charge of the hybrid vehicle is obtained; it is determined whether the first battery state of charge is greater than the set battery charge; if the first battery state of charge is greater than the set battery charge, the current working condition of the range extender is controlled to be the first set working condition, and when the range extender is in the first set working condition, the first torque of the range extender is not higher than the set torque; it can be seen that when the first wading depth of the hybrid vehicle is greater than the set depth, the range extender is controlled to be in a start-up state. By controlling the range extender to be in a start-up state, the probability of water backflowing into the exhaust system of the vehicle can be effectively reduced, the probability of damage to the engine after-treatment system or even engine flooding can be reduced, the probability of malfunction of the hybrid vehicle can be reduced, and the service life of the engine can be increased.

[0082] Furthermore, since the range extender of the hybrid vehicle is in a start-up state and it is determined that the first battery state of charge is greater than the set battery charge, the current operating condition of the range extender is controlled to be the first set operating condition. At this time, when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque. In this way, by controlling the first torque not to be higher than the set torque when the range extender is in the first set operating condition, the power of the range extender in the first set operating condition is lower. Under the condition of lower power, the efficiency of the range extender charging the battery pack of the hybrid vehicle will also be reduced, thereby reducing the probability of overcharging of the battery pack, and further reducing the probability of damage to the battery pack due to overcharging, so as to increase the service life of the battery pack.

[0083] In view of the above-mentioned embodiment, a hybrid vehicle wading control method is provided. The present application embodiment also provides a hybrid vehicle wading control device. Please refer to Figure 3 , the device comprises:

[0084] A wading depth acquisition unit 301 is used to acquire a first wading depth of the hybrid vehicle when the hybrid vehicle is in a wading condition;

[0085] a state of charge acquisition unit 302, configured to control the range extender of the hybrid vehicle to be in an activated state and acquire a first battery state of charge of the hybrid vehicle if the first wading depth is greater than a set depth;

[0086] A judging unit 303, configured to judge whether the first battery state of charge is greater than a set battery state of charge;

[0087] The operating condition control unit 304 is used to control the current operating condition of the range extender to be a first set operating condition if the first battery state of charge is greater than the set battery charge, and when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque.

[0088] In an optional implementation manner, the wading depth acquisition unit 301 is used to acquire a second wading depth of the hybrid vehicle after controlling the current operating condition of the range extender to be the first set operating condition;

[0089] The operating condition control unit 304 is used to control the range extender to be in a closed state when it is determined that the second wading depth is not greater than the set depth.

[0090] In an optional embodiment, the operating condition control unit 304 is used to control the current operating condition of the range extender to be a second set operating condition after determining whether the first battery state of charge is greater than a set battery charge. If the first battery state of charge is not greater than the set battery charge, when the range extender is in the second set operating condition, the second torque of the range extender is higher than the set torque.

[0091] In an optional implementation manner, the wading depth acquisition unit 301 is used to acquire a third wading depth and a second battery state of charge of the hybrid vehicle after controlling the current operating condition of the range extender to be the second set operating condition;

[0092] The operating condition control unit 304 is used to control the range extender to be in the off state if the third wading depth is not greater than the set depth and the second battery state of charge is greater than the set battery charge.

[0093] In an optional implementation, the operating condition control unit 304 is used to control the current operating condition of the range extender to be a third set operating condition after obtaining the third wading depth and the second battery state of charge of the hybrid vehicle, if the third wading depth is greater than a set depth and the second battery state of charge is greater than the set battery charge. When the range extender is in the third set operating condition, the third torque of the range extender is less than the first torque.

[0094] In an optional implementation manner, the wading depth acquisition unit 301 is used to acquire a fourth wading depth of the hybrid vehicle after controlling the current operating condition of the range extender to be the third set operating condition;

[0095] The operating condition control unit 304 is used to control the range extender to be in the closed state when it is determined that the fourth wading depth is not greater than the set depth.

[0096] In an optional implementation manner, the operating condition control unit 304 is used to control the state of the range extender of the hybrid vehicle to remain unchanged after obtaining the first wading depth of the hybrid vehicle if the first wading depth is not greater than the set depth.

[0097] Regarding the device in the above embodiment, the specific manner in which each unit performs the operation has been described in detail in the embodiment of the method, and will not be elaborated here.

[0098] Figure 4 1 is a block diagram of an electronic device 800 for a wading control method for a hybrid vehicle according to an exemplary embodiment. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0099] Reference Figure 4 , the electronic device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / display (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0100] The processing component 802 generally controls the overall operation of the electronic device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0101] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0102] The power supply component 806 provides power to the various components of the electronic device 800. The power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 800.

[0103] The multimedia component 808 includes a screen that provides a display interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0104] The audio component 810 is configured to present and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the electronic device 800 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for presenting audio signals.

[0105] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0106] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the electronic device 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the electronic device 800, and the sensor assembly 814 can also detect the position change of the electronic device 800 or a component of the electronic device 800, the presence or absence of contact between the user and the electronic device 800, the orientation or acceleration / deceleration of the electronic device 800, and the temperature change of the electronic device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0107] The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0108] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0109] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by a processor 820 of an electronic device 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0110] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in this disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0111] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for controlling wading of a hybrid vehicle, characterized in that: The method comprises: When the hybrid vehicle is wading, obtaining a first wading depth of the hybrid vehicle; the first wading depth is a height of a water surface at a location of the hybrid vehicle relative to a chassis of the hybrid vehicle; If the first wading depth is greater than a set depth, controlling the range extender of the hybrid vehicle to be in an activated state, and obtaining a first battery state of charge of the hybrid vehicle; Determining whether the first battery state of charge is greater than a set battery state of charge; If the first battery state of charge is greater than the set battery state of charge, the current operating condition of the range extender is controlled to be a first set operating condition, and when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque; If the first battery state of charge is not greater than the set battery charge, the current operating condition of the range extender is controlled to be a second set operating condition, and when the range extender is in the second set operating condition, the second torque of the range extender is higher than the set torque.

2. The method according to claim 1, characterized in that After controlling the current operating condition of the range extender to be a first set operating condition, the method further includes: obtaining a second wading depth of the hybrid vehicle; When it is determined that the second wading depth is not greater than the set depth, the range extender is controlled to be in a closed state.

3. The method according to claim 1, characterized in that After controlling the current operating condition of the range extender to be a second set operating condition, the method further includes: acquiring a third wading depth and a second battery state of charge of the hybrid vehicle; If the third wading depth is not greater than the set depth, and the second battery state of charge is greater than the set battery charge, the range extender is controlled to be in an off state.

4. The method according to claim 3, characterized in that After obtaining the third wading depth and the second battery state of charge of the hybrid vehicle, the method further includes: If the third wading depth is greater than the set depth and the second battery state of charge is greater than the set battery charge, the current operating condition of the range extender is controlled to be the third set operating condition. When the range extender is in the third set operating condition, the third torque of the range extender is less than the first torque.

5. The method according to claim 4, characterized in that After controlling the current operating condition of the range extender to be a third set operating condition, the method further includes: obtaining a fourth wading depth of the hybrid vehicle; When it is determined that the fourth wading depth is not greater than the set depth, the range extender is controlled to be in the closed state.

6. The method according to any one of claims 1 to 5, characterized in that: After obtaining the first wading depth of the hybrid vehicle, the method further includes: If the first wading depth is not greater than the set depth, the state of the range extender of the hybrid vehicle is controlled to remain unchanged.

7. A water wading control device for a hybrid vehicle, characterized in that: The device comprises: a wading depth acquisition unit, configured to acquire a first wading depth of the hybrid vehicle when the hybrid vehicle is in a wading condition; the first wading depth is a height of a water surface at a location of the hybrid vehicle relative to a chassis of the hybrid vehicle; a state of charge acquisition unit, configured to control the range extender of the hybrid vehicle to be in an activated state and acquire a first battery state of charge of the hybrid vehicle if the first wading depth is greater than a set depth; A judging unit, configured to judge whether the first battery state of charge is greater than a set battery state of charge; An operating condition control unit is used to control the current operating condition of the range extender to be a first set operating condition if the first battery state of charge is greater than the set battery charge, and when the range extender is in the first set operating condition, the first torque of the range extender is not higher than the set torque; if the first battery state of charge is not greater than the set battery charge, control the current operating condition of the range extender to be a second set operating condition, and when the range extender is in the second set operating condition, the second torque of the range extender is higher than the set torque.

8. An electronic device, characterized in that: The invention comprises a memory and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by one or more processors to execute the operation instructions corresponding to the method according to any one of claims 1 to 6 contained in the one or more programs.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps corresponding to the method according to any one of claims 1 to 6 are implemented.

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