Energy saving control device and method for a vehicle and vehicle

Abstract

The application relates to an energy-saving control device and method for a vehicle and the vehicle. The device comprises a receiving module configured to receive the residual power of the vehicle and the current state, wherein the current state comprises one or more of the starting state, the driving state, the vehicle speed and the working state of each power-consuming device; a determining module configured to determine whether to start the intelligent energy-saving mode based on the residual power and the current state; and an adjusting module configured to select the power-consuming device to enter the energy-saving state based on the residual power after starting the intelligent energy-saving mode, wherein each power-consuming device has a corresponding energy-saving level. The application can control the power-consuming devices of the vehicle to save energy under the premise of ensuring normal and safe driving of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to an energy-saving control device and method for a vehicle and the vehicle. BACKGROUND

[0002] A conventional electric vehicle has an economy mode (also referred to as an ECO mode). However, after the vehicle starts the ECO mode, the power performance of the vehicle as a whole is reduced, for example, the brake torque is increased to increase the kinetic energy recovery, and the acceleration torque corresponding to the pedal opening is reduced. In addition, the ECO mode does not control the power consumption of the electrical devices of the vehicle. SUMMARY

[0003] The purpose of the present application is to provide an energy-saving control device and method for a vehicle and the vehicle, which can control the power consumption of the electrical devices of the vehicle while ensuring normal and safe driving of the vehicle by the user.

[0004] The present application discloses an energy-saving control device for a vehicle, comprising:

[0005] a receiving module configured to receive the remaining power and the current state of the vehicle, wherein the current state comprises one or more of a starting state, a driving state, a vehicle speed, and the working state of each electrical device;

[0006] a determining module configured to determine whether to start an intelligent energy-saving mode based on the remaining power and the current state;

[0007] an adjusting module configured to select the electrical device to enter an energy-saving state based on the remaining power after starting the intelligent energy-saving mode, wherein each electrical device has a corresponding energy-saving level.

[0008] Optionally, the receiving module is in communication connection with a central control device of the vehicle to receive the remaining power and the current state from the central control device.

[0009] Optionally, the adjusting module is in communication connection with the control device of each electrical device to send an energy-saving signal to the control device of the corresponding electrical device for adjusting the power consumption of the corresponding electrical device.

[0010] Optionally, the electrical devices include one or more of an air conditioner, a display, a loudspeaker, a cabin light, and an entertainment system application, wherein the air conditioner has a third energy-saving level, the display has a second energy-saving level, and the loudspeaker, the cabin light, and the entertainment system application have a first energy-saving level.

[0011] The application discloses an energy-saving control method for a vehicle, which is applied to the energy-saving control device for the vehicle and comprises the following steps.

[0012] receiving the residual power and the current state of the vehicle by a receiving module, wherein the current state comprises one or more of a starting state, a driving state, a vehicle speed and working states of various electric devices;

[0013] determining whether to start an intelligent energy-saving mode based on the residual power and the current state by a determining module;

[0014] selecting, by an adjusting module, the electric devices to enter an energy-saving state based on the residual power after starting the intelligent energy-saving mode, wherein each electric device has a corresponding energy-saving level.

[0015] Optionally, the method further comprises:

[0016] determining, by the determining module, not to start the intelligent energy-saving mode when the residual power is higher than a first power threshold;

[0017] determining, by the determining module, whether the current state meets a first predetermined state when the residual power is between the first power threshold and a second power threshold, and determining, by the determining module, to remind a user to start the intelligent energy-saving mode when the current state meets the first predetermined state, and determining, by the determining module, not to start the intelligent energy-saving mode when the current state does not meet the first predetermined state;

[0018] determining, by the determining module, whether the current state meets a second predetermined state when the residual power is lower than the second power threshold, and determining, by the determining module, to automatically start the intelligent energy-saving mode when the current state meets the second predetermined state, and determining, by the determining module, not to start the intelligent energy-saving mode when the current state does not meet the second predetermined state.

[0019] Optionally, the method further comprises:

[0020] selecting, by the adjusting module, the electric devices to enter an energy-saving state based on the residual power and the following formula after starting the intelligent energy-saving mode,

[0021] wherein Lp is an energy-saving level factor, RP is the residual power, INT() is a rounding down function, EXP() is an exponential function with a natural constant e as a base, ASIN() is an inverse sine function, and alpha is a correction factor.

[0022] Optionally, the remaining power RP is between 0.1 and 1, and when the remaining power RP is lower than 0.3, the remaining power RP is fixed as 0.3.

[0023] Optionally, the energy saving level of the electrical device includes a third energy saving level L3, a second energy saving level L2 and a first energy saving level L1, wherein the third energy saving level L3 is 3, the second energy saving level L2 is 2, and the first energy saving level L1 is 1, and when Lp is less than or equal to Lx, the electrical device with the energy saving level Lx is selected by the adjusting module to enter the energy saving mode, wherein x is 1, 2 or 3.

[0024] The application discloses a vehicle, which comprises an energy saving control device for the vehicle according to the above.

[0025] Compared with the prior art, the main difference and effect of the application are that:

[0026] The application can control the energy saving of the electrical device of the vehicle under the premise of ensuring the normal and safe driving of the user, so as to optimize the energy consumption in the use process of the vehicle, distribute the electric energy more reasonably to the main electrical device, improve the endurance mileage of the vehicle, and relieve the endurance anxiety problem. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of an energy saving control device for a vehicle according to the application;

[0028] Figure 2 is a flow chart of an energy saving control method for a vehicle according to the application. DETAILED DESCRIPTION

[0029] In order to make the purpose and technical scheme of the embodiments of the application clearer, the technical scheme of the embodiments of the application will be described clearly and completely below with reference to the drawings of the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the described embodiments of the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0030] The embodiments of the application relate to an energy saving control device for a vehicle.

[0031] The vehicle includes an electric vehicle (also referred to as a new energy vehicle). As the market penetration rate of the electric vehicle increases, the gap between the theoretical battery capacity and the actual driving distance attracts more and more social attention, and the larger the gap, the more anxious the vehicle owner is, and the driving safety is also reduced accordingly. In order to reasonably use electric energy during driving, an energy-saving control scheme is needed to better allocate and use the existing battery residual capacity, save driving energy consumption, and achieve the purpose of improving the driving range.

[0032] Figure 1 is a schematic diagram of an energy-saving control device for a vehicle according to the present application. As shown in Figure 1 , the energy-saving control device 100 includes a receiving module 101, a determining module 102, and an adjusting module 103. The receiving module 101 and the determining module 102 are communicatively connected, and the determining module 102 and the adjusting module 103 are communicatively connected.

[0033] The receiving module 101 is configured to receive the residual capacity and the current state of the vehicle. Further, the receiving module 101 is communicatively connected with a central control device 104 of the vehicle to receive the residual capacity and the current state from the central control device 104. Further, the receiving module 101 sends a query request to the central control device 104 at a fixed time interval or an unfixed time interval to receive the residual capacity and the current state from the central control device 104.

[0034] Specifically, the central control device 104 can be a center console. The residual capacity refers to the residual capacity of the vehicle battery, and the current state includes one or more of a starting state, a driving state, a vehicle speed, and a working state of each electric device.

[0035] The determining module 102 is configured to receive the residual capacity and the current state from the receiving module 101, and determine whether to start an intelligent energy-saving mode based on the residual capacity and the current state.

[0036] Further, when the residual capacity is higher than a first capacity threshold, the determining module 102 determines not to start the intelligent energy-saving mode, so as to ensure normal working of each electric device when the battery capacity is sufficient and improve user experience.

[0037] When the residual capacity is between the first capacity threshold and a second capacity threshold, the determining module 102 determines whether the current state satisfies a first predetermined state, and when the current state satisfies the first predetermined state, the determining module 102 determines to remind the user to start the intelligent energy-saving mode, and when the current state does not satisfy the first predetermined state, the determining module 102 determines not to start the intelligent energy-saving mode.

[0038] The first predetermined state refers to a set of vehicle states that meet the condition of prompting the user to start the intelligent energy-saving mode. The first predetermined state can be adjusted and adapted according to different vehicle models. For example, for a general electric vehicle, the first predetermined state can be set as {“vehicle starting”}, or set as {“vehicle driving”, “vehicle speed higher than 30 KM / H”}, or set as {“vehicle driving”, “vehicle speed higher than 30 KM / H”, “air conditioner on”}, and the like. When it is determined to prompt the user to start the intelligent energy-saving mode, a prompt box can be displayed on the user interface to prompt the user whether to start the intelligent energy-saving mode. If the user selects “yes”, the intelligent energy-saving mode is started, otherwise the intelligent energy-saving mode is not started.

[0039] When the remaining power is lower than the second power threshold, the determination module 102 determines whether the current state meets the second predetermined state, and when the current state meets the second predetermined state, the determination module 102 determines to automatically start the intelligent energy-saving mode, and when the current state does not meet the second predetermined state, the determination module 102 determines not to start the intelligent energy-saving mode.

[0040] The second predetermined state refers to a set of vehicle states that meet the condition of automatically starting the intelligent energy-saving mode. The second predetermined state can be adjusted and adapted according to different vehicle models, and can be the same as or different from the first predetermined state. When it is determined to automatically start the intelligent energy-saving mode, the intelligent energy-saving mode is started directly without user instruction.

[0041] The adjustment module 103 is configured to select the corresponding electric devices to enter the energy-saving state based on the remaining power after starting the intelligent energy-saving mode. Generally, as the remaining power becomes less and less, more electric devices will enter the energy-saving mode.

[0042] In order to ensure energy-saving effectiveness and low side effects, a management library of electric devices can be designed, which contains vehicle electric devices that can participate in energy-saving, and can be adjusted and adapted according to different vehicle models. For example, the management library of a certain vehicle model is designed as {“air conditioner”, “display”, “speaker”, “cabin light”, “entertainment system application”}. In addition, the energy-saving levels L1, L2, L3, etc. of each electric device in the management library can also be designed, wherein the energy-saving levels are L1, L2, L3, etc. from high to low. As an example, for a certain vehicle model, the air conditioner has a third energy-saving level, the display has a second energy-saving level, and the speaker, the cabin light, and the entertainment system application have a first energy-saving level. It can be understood that the energy-saving levels of each electric device can be adjusted according to actual needs.

[0043] Further, the adjusting module 103 is communicatively connected with the control devices of the respective electrical devices, to send the energy saving signal to the control devices of the respective electrical devices, for adjusting the power consumption of the respective electrical devices. For example, the adjusting module 103 is communicatively connected with the air conditioner control device 105, the display control device 106, the speaker control device 107, the cabin light control device 108 and the entertainment system control device 109.

[0044] Further, after starting the intelligent energy saving mode, the adjusting module 103 selects the respective electrical devices to enter the energy saving state based on the remaining power and the following formula,

[0045] wherein Lp is the energy saving level factor, RP is the remaining power, INT() function is the floor function, EXP() function is the exponential function with the natural constant e as the base, ASIN() function is the inverse sine function, and alpha is the correction factor.

[0046] Further, the remaining power RP is between 0.1 and 1, and when the remaining power RP is lower than 0.3, the remaining power RP is fixed as 0.3.

[0047] As already described above, the energy saving levels of the electrical devices, for example, include the third energy saving level L3, the second energy saving level L2 and the first energy saving level L1, wherein the third energy saving level L3 is 3, the second energy saving level L2 is 2, and the first energy saving level L1 is 1, and when Lp is less than or equal to Lx, the adjusting module 103 selects the electrical device with the energy saving level Lx to enter the energy saving mode, wherein x is 1, 2 or 3.

[0048] For example, when Lp is 3, Lp is less than or equal to L3, at this time the adjusting module 103 selects the electrical device with the energy saving level L3 (such as the air conditioner) to enter the energy saving mode; when Lp is 2, Lp is less than or equal to L3 and L2, at this time the adjusting module 103 selects the electrical devices with the energy saving levels L3 and L2 (such as the air conditioner and the display) to enter the energy saving mode; when Lp is 1, Lp is less than or equal to L3, L2 and L1, at this time the adjusting module 103 selects the electrical devices with the energy saving levels L3, L2 and L1 (such as the air conditioner, the display, the speaker, the cabin light and the entertainment system) to enter the energy saving mode.

[0049] After selecting the air conditioner to enter the energy-saving state, the air volume of the air conditioner can be adjusted, the temperature of the air conditioner can be appropriately increased or decreased, and the internal circulation mode can be turned on, etc. After selecting the display to enter the energy-saving state, the brightness of the display can be adjusted until the brightness is the lowest. After selecting the loudspeaker to enter the energy-saving state, the volume of the loudspeaker can be adjusted until the loudspeaker is muted. After selecting the cabin light to enter the energy-saving state, the brightness of the cabin light can be adjusted until the brightness is the lowest or the cabin light is directly temporarily turned off. After selecting the entertainment system application to enter the energy-saving state, unnecessary entertainment system applications can be turned off or the entertainment system application can be adjusted to the minimum power consumption mode, etc.

[0050] Thus, by receiving the remaining power and the current state of the vehicle by the receiving module, determining whether to start the intelligent energy-saving mode by the determining module, and selecting the relevant electrical devices to enter the energy-saving state based on the remaining power by the adjusting module, the energy consumption of the vehicle during use can be optimized, the electric energy can be more reasonably distributed to the main electrical devices, the cruising range of the vehicle can be improved, and the problem of range anxiety can be alleviated, while ensuring normal and safe driving of the vehicle by the user.

[0051] Embodiments of the application also relate to an energy-saving control method for a vehicle.

[0052] Figure 2 is a flowchart of the energy-saving control method for a vehicle according to the application. As shown in Figure 2 the energy-saving control method 200 is applied to the energy-saving control device 100 as already described above, and the energy-saving control method 200 comprises:

[0053] At S201, the remaining power and the current state of the vehicle are received by the receiving module.

[0054] At S202, it is determined by the determining module whether the remaining power is higher than a first power threshold. If the remaining power is higher than the first power threshold, it is determined by the determining module not to start the intelligent energy-saving mode, and return to S201 after a certain time interval t. If the remaining power is not higher than the first power threshold, proceed to S203, and it is determined by the determining module whether the remaining power is lower than a second power threshold.

[0055] If the remaining power is not lower than the second power threshold, i.e. the remaining power is between the first power threshold and the second power threshold, proceed to S204, determine by the determining module whether the current state satisfies the first predetermined state. If the current state satisfies the first predetermined state, proceed to S205, determine by the determining module to remind the user to start the intelligent energy-saving mode, and if the user does not select to start the intelligent energy-saving mode, directly return to S201. If the current state does not satisfy the first predetermined state, determine by the determining module not to start the intelligent energy-saving mode, and return to S201 after a certain time interval t.

[0056] If the remaining power is lower than the second power threshold, proceed to S206, determine by the determining module whether the current state satisfies the second predetermined state. If the current state satisfies the second predetermined state, proceed to S207, determine by the determining module to automatically start the intelligent energy-saving mode. If the current state does not satisfy the second predetermined state, determine by the determining module not to start the intelligent energy-saving mode, and return to S201 after a certain time interval t.

[0057] Further, after starting the intelligent energy-saving mode, select by the adjusting module the corresponding electric device to enter the energy-saving state based on the remaining power and the following formula,

[0058] wherein Lp is the energy-saving level factor, RP is the remaining power, INT() function is the floor function, EXP() function is the exponential function with the natural constant e as the base, ASIN() function is the inverse sine function, and alpha is the correction factor.

[0059] Further, the remaining power RP is between 0.1 and 1, and when the remaining power RP is lower than 0.3, the remaining power RP is fixed as 0.3.

[0060] The energy-saving level of the electric device includes a third energy-saving level L3, a second energy-saving level L2 and a first energy-saving level L1, wherein the third energy-saving level L3 is 3, the second energy-saving level L2 is 2, and the first energy-saving level L1 is 1, and when Lp is less than or equal to Lx, the electric device with the energy-saving level Lx is selected by the adjusting module to enter the energy-saving mode, wherein x is 1, 2 or 3.

[0061] Thus, the present application can control the energy-saving of the electric device of the vehicle under the premise of ensuring the normal and safe driving of the user, thereby optimizing the energy consumption in the use process of the vehicle, improving the endurance mileage of the vehicle, and relieving the endurance anxiety problem, by receiving by the receiving module the remaining power and the current state of the vehicle, determining by the determining module whether to start the intelligent energy-saving mode, and selecting by the adjusting module the corresponding electric device to enter the energy-saving state based on the remaining power.

[0062] The first embodiment is a device embodiment corresponding to the first embodiment, and the first embodiment can be implemented in cooperation with the first embodiment. The technical details mentioned in the first embodiment are still valid in the present embodiment, and are not repeated here in order to reduce repetition. Correspondingly, the technical details mentioned in the present embodiment can also be applied in the first embodiment.

[0063] The embodiments of the present application also relate to a vehicle comprising the energy saving control device for a vehicle according to the above description.

[0064] Through simulation and actual debugging verification, in the process of using the vehicle, specifically from full charge (i.e. 100% power) to 10% power, the use of the energy saving control device and method for a vehicle according to the above description will save at least 10% of power consumption, thereby more greatly ensuring the driving range of the vehicle and alleviating the driving concerns of the user.

[0065] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0066] In the drawings, some structural or methodological features can be shown in a particular arrangement and / or order. However, it should be understood that such a particular arrangement and / or order can not be required. Rather, in some embodiments, these features can be arranged in a manner different from that shown in the illustrative drawings. Additionally, inclusion of structural or methodological features in a particular figure does not imply that such features are required in all embodiments, and in some embodiments these features can not be included or can be modified or combined with other features.

[0067] While the application has been illustrated and described in detail in the drawings and foregoing description, the ordinary skilled worker will be able to devise numerous ways in which the application can be implemented in other environments without departing from the spirit and scope of the application.

Claims

1. An energy saving control device for a vehicle, characterized by, The device comprises: a receiving module configured to receive a remaining power and a current state of the vehicle, wherein the current state comprises one or more of a starting state, a driving state, a vehicle speed, and an operating state of each power-consuming device; a determining module configured to determine whether to start an intelligent energy-saving mode based on the remaining power and the current state; an adjusting module configured to select, after starting the intelligent energy-saving mode, a power-consuming device to enter an energy-saving state based on the remaining power, wherein each power-consuming device has a corresponding energy-saving level; wherein, when the remaining power is higher than a first power threshold, the determining module determines not to start the intelligent energy-saving mode; when the remaining power is between the first power threshold and a second power threshold, the determining module determines whether the current state meets a first predetermined state, and when the current state meets the first predetermined state, the determining module determines to remind a user to start the intelligent energy-saving mode, and when the current state does not meet the first predetermined state, the determining module determines not to start the intelligent energy-saving mode; when the remaining power is lower than the second power threshold, the determining module determines whether the current state meets a second predetermined state, and when the current state meets the second predetermined state, the determining module determines to automatically start the intelligent energy-saving mode, and when the current state does not meet the second predetermined state, the determining module determines not to start the intelligent energy-saving mode; wherein, after starting the intelligent energy-saving mode, the adjusting module selects the power-consuming device to enter the energy-saving state based on the remaining power and the following formula, where Lp is a power saving level factor, RP is the remaining power, the INT() function is a floor function, the EXP() function is an exponential function with base of the natural constant e, the ASIN() function is an inverse sine function, and alpha is a correction factor.

2. The apparatus of claim 1, wherein, the receiving module is in communication connection with a central control device of the vehicle to receive the remaining power and the current state from the central control device.

3. The apparatus of claim 1, wherein, the adjusting module is in communication connection with a control device of each power-consuming device to send an energy-saving signal to the control device of the power-consuming device for adjusting power consumption of the power-consuming device.

4. The apparatus of claim 1, wherein, The power-consuming device comprises one or more of an air conditioner, a display, a loudspeaker, a cabin light, and an entertainment system application, wherein the air conditioner has a third energy-saving level, the display has a second energy-saving level, and the loudspeaker, the cabin light, and the entertainment system application have a first energy-saving level.

5. An energy saving control method for a vehicle, characterized by, The method is applied to the energy-saving control device for the vehicle according to any one of claims 1-4, and the method comprises: receiving, by a receiving module, a remaining power and a current state of the vehicle, wherein the current state comprises one or more of a starting state, a driving state, a vehicle speed, and an operating state of each power-consuming device; determining, by a determining module, whether to start an intelligent energy-saving mode based on the remaining power and the current state; after starting the intelligent energy-saving mode, selecting, by an adjusting module, a power-consuming device to enter an energy-saving state based on the remaining power, wherein each power-consuming device has a corresponding energy-saving level; wherein, when the remaining power is higher than a first power threshold, the determining module determines not to start the intelligent energy-saving mode; when the remaining power is between the first power threshold and a second power threshold, the determining module determines whether the current state meets a first predetermined state, and when the current state meets the first predetermined state, the determining module determines to remind a user to start the intelligent energy-saving mode, and when the current state does not meet the first predetermined state, the determining module determines not to start the intelligent energy-saving mode; when the remaining power is lower than the second power threshold, the determining module determines whether the current state meets a second predetermined state, and when the current state meets the second predetermined state, the determining module determines to automatically start the intelligent energy-saving mode, and when the current state does not meet the second predetermined state, the determining module determines not to start the intelligent energy-saving mode; wherein, after starting the intelligent energy-saving mode, the adjusting module selects the power-consuming device to enter the energy-saving state based on the remaining power and the following formula, the receiving module is in communication connection with a central control device of the vehicle to receive the remaining power and the current state from the central control device. when the remaining power is between the first power threshold and the second power threshold, determining by the determining module whether the current state satisfies a first predetermined state, and when the current state satisfies the first predetermined state, determining by the determining module to remind a user to start the intelligent energy saving mode, and when the current state does not satisfy the first predetermined state, determining by the determining module not to start the intelligent energy saving mode; when the remaining power is below the second power threshold, determining by the determining module whether the current state satisfies a second predetermined state, and when the current state satisfies the second predetermined state, determining by the determining module to automatically start the intelligent energy saving mode, and when the current state does not satisfy the second predetermined state, determining by the determining module not to start the intelligent energy saving mode; wherein, after starting the intelligent energy saving mode, selecting by the adjusting module the used electrical device to enter the energy saving state based on the remaining power and the following formula, where Lp is a power saving level factor, RP is the remaining power, the INT() function is a floor function, the EXP() function is an exponential function with base of the natural constant e, the ASIN() function is an inverse sine function, and alpha is a correction factor.

6. The method of claim 5, wherein, the remaining power RP is between 0.1 and 1, and when the remaining power RP is below 0.3, the remaining power RP is fixed as 0.

3.

7. The method of claim 6, wherein, the energy saving level of the used electrical device includes a third energy saving level L3, a second energy saving level L2 and a first energy saving level L1, wherein the third energy saving level L3 is 3, the second energy saving level L2 is 2, and the first energy saving level L1 is 1, and when Lp is less than or equal to Lx, selecting by the adjusting module the used electrical device with the energy saving level Lx to enter the energy saving mode, wherein x is 1, 2 or 3.

8. A vehicle characterized by comprising: the vehicle includes the energy saving control device for the vehicle according to any one of claims 1-4.

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