Power supply and consumption control system for automobile, power supply and consumption system and automobile

Abstract

The invention discloses a power supply and consumption control system for an automobile, a power supply and consumption system and the automobile, and a control unit is used for detecting working parameters of a power supply device and working parameters of an electric appliance and controlling the power supply power of a vehicle-mounted power supply device to the vehicle-mounted electric appliance according to the working parameters of the power supply device and the working parameters of the electric appliance. According to the power supply and consumption control system for the automobile, the power supply and consumption system and the control unit in the automobile, the power supply power of the vehicle-mounted power supply device to the vehicle-mounted electric appliance is controlled according to the working parameters of the power supply device and the working parameters of the electric appliance, so that the risks of heating, damage or fire caused by overload of the vehicle-mounted power supply device or the vehicle-mounted electric appliance can be reduced; the use safety of the automobile is protected; moreover, the control unit is a part of the power supply circuit, can protect the vehicle-mounted power supply device and the vehicle-mounted electric appliances at the same time, or can protect a plurality of vehicle-mounted power supply devices and / or a plurality of vehicle-mounted electric appliances at the same time, thereby achieving the effects of saving the cost and improving the protection surface. The invention is widely applied to the technical field of automobiles.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, in particular to a power supply and utilization control system for automobiles, a power supply and utilization system and an automobile. Background Art

[0002] The development direction of automobiles is electronic and intelligent, which means that a large number of on-board electrical appliances need to be installed on the car, including headlights, air conditioners, motors, electric steering boosters, speakers, ambient lights, etc. In order to power these on-board electrical appliances, it is necessary to set up an on-board power supply, which can be a generator, a battery, a power battery, etc. The on-board power supply and the on-board electrical appliances can be connected point-to-point or through a busbar.

[0003] The on-board power supply and on-board electrical appliances have a certain safe range of working current (or power). If this safe range is exceeded, electrical overheating and other faults may easily occur, and there may even be risks of fire and burning the car. Therefore, it is necessary to monitor parameters such as the working current (or power) of the on-board power supply and on-board electrical appliances, and limit the current or power when necessary, so as to reduce the risk of overheating and fire.

[0004] The current vehicle electrical technology mainly relies on the monitoring system integrated inside the appliance or specially configured to realize the monitoring function of parameters such as working current (or power). For example, the power battery is equipped with a battery management system (BMS) to monitor the temperature, charging and discharging voltage and current of the power battery. However, there are a large number of vehicle electrical appliances and vehicle power supplies on the car. Due to cost control and technical complexity, most of the vehicle electrical appliances and vehicle power supplies are not internally integrated or equipped with a special monitoring system, so they still face a high risk of overheating and fire. Summary of the invention

[0005] In view of the technical problems faced by current vehicle electrical technology such as high risk of overheating and fire, the purpose of the present invention is to provide a power supply and utilization control system for a vehicle, a power supply and utilization system and a vehicle.

[0006] On the one hand, an embodiment of the present invention includes a method for processing social application conversation information in a driving scenario, and the method for processing social application conversation information in a driving scenario includes the following steps:

[0007] A control unit; the control unit is connected to the vehicle power supply and the vehicle electrical appliances, respectively, as a part of the power supply circuit between the vehicle power supply and the vehicle electrical appliances;

[0008] The control unit is used to detect the working parameters of the power supply and the working parameters of the electrical appliances, and control the power supply of the vehicle-mounted power supply to the vehicle-mounted electrical appliances according to the working parameters of the power supply and the working parameters of the electrical appliances; wherein the working parameters of the power supply are the working parameters of the vehicle-mounted power supply, and the working parameters of the electrical appliances are the working parameters of the vehicle-mounted electrical appliances.

[0009] Further, controlling the power supplied by the vehicle-mounted power supply to the vehicle-mounted electrical appliance according to the working parameters of the power supply and the working parameters of the electrical appliance comprises:

[0010] Determining that the operating parameters of the power supply and the operating parameters of the electrical appliance reach a first steady state in a first time period;

[0011] Determining that the operating parameters of the power supply and the operating parameters of the electrical appliance reach a second steady state in a second time period; the second time period is a time period after the first time period;

[0012] The power supply is adjusted according to the first steady state and the second steady state.

[0013] Further, the determining that the operating parameters of the power supply and the operating parameters of the electrical appliance reach a first steady state in a first time period includes:

[0014] Taking the current time period as the first time period;

[0015] In the first time period, the values ​​of the working parameters of the power supply and the working parameters of the electrical appliance are measured, and the first steady state is determined according to the measured results.

[0016] Further, the determining that the operating parameters of the power supply and the operating parameters of the electrical appliance reach a second steady state in a second time period includes:

[0017] During the first time period, detecting a power demand event;

[0018] According to the power demand event, the values ​​of the power supply operating parameters and the electrical appliance operating parameters in the second time period are predicted, and the second steady state is determined according to the prediction result.

[0019] Further, predicting the values ​​of the operating parameters of the power supply device and the operating parameters of the electrical appliance in the second time period according to the power demand event, and determining the second steady state according to the prediction result includes:

[0020] Determining a time change value according to the first time period and the second time period;

[0021] Determining a steady-state change value according to the power demand event and the time change value;

[0022] The second steady state is determined according to the first steady state and the steady state change value.

[0023] Further, adjusting the power supply according to the first steady state and the second steady state includes:

[0024] determining a steady-state change value according to the first steady-state and the second steady-state;

[0025] Determining a time change value according to the first time period and the second time period;

[0026] Determining a steady-state change rate according to the steady-state change value and the time change value;

[0027] When the steady-state change rate is greater than a rate threshold, obtaining the required power required by the power demand event;

[0028] When the required power is greater than the first rated power and less than the second rated power, the power supply power is determined according to the steady-state change value; wherein the first rated power is the minimum value between the rated power of the vehicle power supply and the rated power of the vehicle electrical appliances, and the second rated power is the maximum value between the rated power of the vehicle power supply and the rated power of the vehicle electrical appliances.

[0029] Further, determining the power supply power according to the steady-state change value includes:

[0030] Obtaining a first angle; wherein the first angle is the angle between a unit vector of a working parameter of the on-board electrical appliance corresponding to the first rated power and the steady-state change value;

[0031] Determining an increase range of the required power according to the first angle; wherein the increase range is positively correlated with the first angle;

[0032] Within the range of the second rated power, increasing the required power according to the increase amplitude;

[0033] The increased required power is determined as the supplied power.

[0034] Further, the adjusting the power supply according to the first steady state and the second steady state further includes:

[0035] When the required power is less than the first rated power or greater than the second rated power, the required power is determined as the power supply power.

[0036] On the other hand, an embodiment of the present invention further includes a power supply system for a vehicle, the power supply system for a vehicle comprising:

[0037] A power supply and use control system for a vehicle in an embodiment;

[0038] On-board power supply;

[0039] Car electrical appliances.

[0040] On the other hand, an embodiment of the present invention further includes a car, comprising:

[0041] A power supply and use control system for a vehicle in an embodiment;

[0042] or

[0043] The power supply system for a car described in the embodiment.

[0044] The beneficial effects of the present invention are as follows: the power supply and use control system for a vehicle in the embodiment, wherein the control unit controls the power supply of the vehicle-mounted power supply to the vehicle-mounted electrical appliances according to the working parameters of the power supply and the working parameters of the electrical appliances, can reduce the risk of overloading of the vehicle-mounted power supply or the vehicle-mounted electrical appliances and causing heating, damage or fire, and protect the safety of the vehicle; moreover, the control unit is part of the power supply circuit, and can protect the vehicle-mounted power supply and the vehicle-mounted electrical appliances at the same time, or can protect multiple vehicle-mounted power supplies and / or multiple vehicle-mounted electrical appliances at the same time, thereby achieving the effect of saving costs and increasing the protection surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the structure of a power supply and use control system for a vehicle in an embodiment;

[0046] Figure 2 A schematic diagram of the structure of a power supply system for a car in an embodiment;

[0047] Figure 3 A schematic diagram of the working principle of the power supply system for a car in the embodiment;

[0048] Figure 4 A schematic diagram of steps executed by a control unit in an embodiment;

[0049] Figure 5 This is a schematic diagram of the principle of step S305 in the embodiment;

[0050] Figure 6 FIG. 4 is a schematic diagram of the principle of step S306 in the embodiment. DETAILED DESCRIPTION

[0051] In this embodiment, a power supply and use control system for a vehicle is provided. The power supply and use control system for a vehicle includes a control unit, and the structure of the control unit is as follows: Figure 1 See Figure 1The control unit includes a switch device and a controller, the switch device includes an input end, an output end and a controlled end, wherein the input end can be connected to the power supply through a wire, and the output end can be connected to the electrical appliance through a wire, so that the switch device becomes a part of the power supply line between the power supply and the electrical appliance; the controlled end is connected to the control end of the controller, and the controller can control the switching state of the switch device so that the switch device is in a state of full opening, full closing or half opening (for example, the controller can control the input impedance of the switch device so that the input impedance of the switch device is adjustable within the range of 10%-100% in the full closing state, or the controller can output a PWM waveform with an adjustable duty cycle to the switch device); since the degree of limitation of the current (power) flowing from the input end to the output end when the switch device is in a state of full opening, full closing or half opening is different, the current (power) provided by the power supply to the electrical appliance can be controlled.

[0052] In this embodiment, Figure 2 As shown, the control unit is connected with the on-board power supply and the on-board electrical appliances to form a power supply system for the vehicle. Figure 2 The power supply line input end of the control unit is connected to the vehicle-mounted power supply, and the power supply line output end is connected to the vehicle-mounted electrical appliances. The control unit serves as a part of the power supply line between the vehicle-mounted power supply and the vehicle-mounted electrical appliances; the data line input end of the control unit is respectively connected to the vehicle-mounted power supply and the vehicle-mounted electrical appliances, and is used to collect required data from the vehicle-mounted power supply and the vehicle-mounted electrical appliances, and according to the collected data, realize the control of the current (power) provided by the vehicle-mounted power supply to the vehicle-mounted electrical appliances.

[0053] In this embodiment, Figure 2 The vehicle power supply shown may be a specific power supply device, such as a power battery, Figure 2 The vehicle-mounted electrical appliance shown may be a specific electrical device, such as a motor used to drive the wheels of an electric vehicle. Figure 2 The power supply line in the system is a point-to-point connection line. Figure 2 The vehicle-mounted power supply and vehicle-mounted electrical appliances shown in the figure may also be the general term for multiple power supplies and electrical appliances, respectively. Figure 2 The power supply line in the system is a busbar shared by multiple electrical appliances. Specifically, for important (for example, high-cost or closely related to the driving safety of the car) on-board power supplies (such as power batteries) and on-board electrical appliances (such as motors), a point-to-point connection method can be adopted, that is, one on-board power supply is connected to one on-board electrical appliance through one control unit. For relatively unimportant on-board electrical appliances, a busbar connection method can be adopted, for example, one on-board power supply is connected to multiple on-board electrical appliances through one control unit.

[0054] In this embodiment, a specific power supply device, namely a power battery, is taken as an example of a vehicle-mounted power supply, and a specific power-consuming device, namely a motor, is taken as an example of a vehicle-mounted electrical appliance. In order to illustrate the role of the control unit, it is assumed that the vehicle-mounted power supply and the vehicle-mounted electrical appliances are not internally integrated or externally equipped with a special protection system (such as BMS).

[0055] In this embodiment, refer to Figure 3 The data collected by the control unit from the on-board power supply through the data line are the working parameters of the on-board power supply, that is, the working parameters of the power supply. The data collected by the control unit from the on-board electrical appliances through the data line are the working parameters of the on-board electrical appliances, that is, the working parameters of the electrical appliances.

[0056] In this embodiment, the control unit controls the power supply of the vehicle-mounted power supply to the vehicle-mounted electrical appliances according to the working parameters of the power supply and the working parameters of the electrical appliances. In this embodiment, it is assumed that the loss of the switching device in the control unit and the power consumption of the controller are very small, that is, the power consumption of the control unit itself is very small, so it can be considered that the power (current) flowing into the control unit is equal to the power (current) flowing out of the control unit. For example, the control unit can limit the power supply of the vehicle-mounted power supply to the vehicle-mounted electrical appliances, thereby avoiding the output power of the vehicle-mounted power supply and the input power of the vehicle-mounted electrical appliances being too large, reducing the risk of overloading the vehicle-mounted power supply or the vehicle-mounted electrical appliances and causing heating, damage or fire, and protecting the safety of the use of the car; moreover, the control unit is part of the power supply line, which can protect the vehicle-mounted power supply and the vehicle-mounted electrical appliances at the same time, or can protect multiple vehicle-mounted power supplies and / or multiple vehicle-mounted electrical appliances at the same time, thereby saving costs and improving the protection surface.

[0057] In this embodiment, the control unit controls the power supply of the vehicle power supply device to the vehicle electrical appliances according to the working parameters of the power supply device and the working parameters of the electrical appliances, referring to Figure 4 , the control unit can specifically perform the following steps:

[0058] S1. Determine the power supply operating parameters and electrical appliance operating parameters in the first time period to reach a first steady state;

[0059] S2. Determine the power supply operating parameters and electrical operating parameters in the second time period to reach a second steady state;

[0060] S3. Adjust the power supply according to the first steady state and the second steady state.

[0061] In this embodiment, the power supply working parameters to be detected specifically include the working temperature Temperature1, discharge current I1, discharge voltage V1 and other parameters of the vehicle power supply (power battery); the electrical appliance working parameters to be detected specifically include the working temperature Temperature2, input current I2, input voltage V2, speed rpm and output torque T and other parameters of the vehicle electrical appliance (motor).

[0062] In step S1, assuming that the first time period duration1 is the current time period, the control unit can call the sensor installed on the vehicle power supply (power battery) to perform actual measurement during the first time period duration1, thereby obtaining the actual measurement results, namely, the current measured values ​​of the operating temperature Temperature1, the discharge current I1, and the discharge voltage V1, which are respectively and At the same time, the control unit calls the sensors installed on the vehicle electrical appliances (motor) for actual measurement, thereby obtaining the actual measurement results, namely the current measured values ​​of the operating temperature Temperature2, input current I2, input voltage V2, speed rpm and output torque T, which are respectively rpm1 and T1.

[0063] In step S1, if in the first time period duration1, that is, the currently measured power supply operating parameters and And electrical working parameters If rpm1 and T1 remain stable (for example, the fluctuation does not exceed the threshold) within a certain time period (for example, the time period of the first time period duration1 exceeds p%, where p% is the threshold), then it can be determined that the working parameters of the power supply and the working parameters of the electrical appliance have reached a steady state within the first time period duration1, that is, the first steady state. Specifically, the first steady state can be expressed as a vector composed of the measured values ​​of the working parameters of the power supply and the measured values ​​of the working parameters of the electrical appliance, in the form of

[0064] In this embodiment, when the control unit executes step S2, that is, the step of determining that the operating parameters of the power supply device and the operating parameters of the electrical appliance reach the second steady state in the second time period, the control unit may specifically execute the following steps:

[0065] S201. In the first time period, detecting a power demand event;

[0066] S202. According to the power demand event, predict the values ​​of the power supply operating parameters and the electrical appliance operating parameters in the second time period, and determine the second steady state according to the prediction result.

[0067] In step S201, the control unit detects whether there is a power demand event within the first time period duration1. The power demand event may be an event in which the operation performed by the user causes the vehicle-mounted electrical appliance to generate power demand, such as the driver steps on the accelerator pedal, causing the motor to receive an acceleration command, thereby generating power demand; the power demand event may also be an event in which the vehicle-mounted electrical appliance automatically generates power demand when performing a function, such as in the automatic cruise mode of the car, it is detected that it has entered an uphill section, and in order to maintain a stable cruising speed, the motor control system automatically sends an acceleration command to the motor, thereby generating power demand. In this embodiment, the power demand event may be in the form of an instruction.

[0068] In this embodiment, the power demand event may also be a fault such as a short circuit in the on-board electrical appliances, which causes the input impedance of the on-board electrical appliances to decrease, thereby generating an event equivalent to the power demand.

[0069] In step S202, the control unit predicts the values ​​of the power supply operating parameters and the electrical appliance operating parameters in the second time period in response to the power demand event, and determines the second steady state according to the prediction result.

[0070] In this embodiment, the second time period duration2 is the time period after the first time period duration1. The time interval between the second time period duration2 and the first time period duration1 can be set to a fixed value. For example, the second time period duration2 starts after a certain time interval (which can be 1 minute) after the end of the first time period duration1.

[0071] In step S202, the control unit calculates the time change value Δduration (e.g., 1 min) between the second time period duration2 and the first time period duration1, and determines the temperature rise rate, current increase rate, voltage increase rate, speed acceleration, and torque acceleration of the power battery and the motor respectively according to the power demand event, such as the accelerator pedal depression depth or the intensity of the automatic cruise command, by looking up a table, etc., and determines the first steady-state according to the time change value Δduration. The change values ​​of each component in the first steady state are (ΔTemperature1, ΔI1, ΔV1, ΔTemperature2, ΔI2, ΔV2, Δrpm, ΔT). The second steady-state is obtained by summing the steady-state change values ​​(ΔTemperature1, ΔI1, ΔV1, ΔTemperature2, ΔI2, ΔV2, Δrpm, ΔT)

[0072] In this embodiment, the second steady state It is to predict the stable values ​​that the operating parameters of the power supply device and the operating parameters of the electrical appliances reach in the second time period duration2 (for example, they remain stable for more than p% of the second time period duration2).

[0073] In this embodiment, in order to facilitate data processing, each component in the first steady state and the second steady state can be normalized. For example, for the speed rpm1 in the first steady state, its corresponding theoretical minimum speed can be mapped to 0, and its corresponding theoretical maximum speed can be mapped to 1, so that its actual value is mapped to the value range of [0,1] to obtain its normalized value. Through normalization processing, the dimensions of each component can be removed, and different components can be made to be in the same value range.

[0074] In this embodiment, when the control unit executes step S3, that is, the step of adjusting the power supply according to the first steady state and the second steady state, the control unit may specifically execute the following steps:

[0075] S301. Determine a steady-state change value according to the first steady state and the second steady state;

[0076] S302. Determine the time change value according to the first time period and the second time period;

[0077] S303. Determine the steady-state change rate according to the steady-state change value and the time change value;

[0078] S304. When the steady-state change rate is greater than the rate threshold, the required power required for the power demand event is obtained;

[0079] S305. When the required power is greater than the first rated power and less than the second rated power, the power supply is determined according to the steady-state change value; wherein the first rated power is the minimum value of the rated power of the vehicle power supply and the rated power of the vehicle electrical appliance, and the second rated power is the maximum value of the rated power of the vehicle power supply and the rated power of the vehicle electrical appliance;

[0080] S306. When the required power is less than the first rated power or greater than the second rated power, the required power is determined as the power supply power.

[0081] In steps S301-S303, according to the steady-state change value Δparameter=(ΔTemperature1, ΔI1, ΔV1, ΔTemperature2, ΔI2, ΔV2, Δrpm, ΔT) and the time change value Δduration, the The steady-state change rate indicates how rapidly the operating parameters of the power supply and the electrical appliances switch from one steady state to another under the influence of the power demand event.

[0082] In step S304, a rate threshold can be set. When the steady-state change rate is less than or equal to the rate threshold, it can be determined that the steady-state change rate is not large, thereby not triggering the execution of steps S305-S306; when the steady-state change rate is greater than the rate threshold, it can be determined that the steady-state change rate is too large, thereby obtaining the required power required for the power demand event and triggering the execution of steps S305-S306.

[0083] In step S304, the required power required for the power demand event can be determined by looking up a table or the like. The required power represents the input power of the on-board electrical appliances that can meet the power demand event, and is also the output power of the on-board power supply. For example, when the driver steps on the accelerator pedal, a power demand event in the form of an acceleration instruction is generated. The power that the on-board power supply should provide to the on-board electrical appliances that can meet the acceleration requirement at this depth can be converted according to the depth of the driver's stepping on the accelerator pedal, i.e., the required power.

[0084] In this embodiment, when the on-board circuit voltage is stable, power parameters such as required power are proportional to the current, so these power parameters can be expressed by current parameters.

[0085] The on-board power supply and on-board electrical appliances have rated powers respectively. The rated power of the on-board power supply indicates the maximum power that the on-board power supply can continuously and stably output under normal working conditions, and the rated power of the on-board electrical appliances indicates the maximum power that can be continuously and stably input to the on-board electrical appliances under normal working conditions. The rated powers of the on-board power supply and on-board electrical appliances can be determined during their design or production respectively, and are fixed values.

[0086] The principle of step S305 is as follows Figure 5 In this embodiment, the smaller of the rated powers of the vehicle power supply and the vehicle electrical appliance is called the first rated power, and the larger of the rated powers is called the second rated power. Figure 5 , assuming that the rated power of the on-board electrical appliance (motor) is 100kW, and the rated power of the on-board power supply (power battery) is 100kW, then the rated power of the on-board electrical appliance (motor) is the first rated power, and the rated power of the on-board power supply (power battery) is the second rated power.

[0087] When the first rated power is the rated power of the vehicle-mounted electrical appliance (motor), the vehicle-mounted electrical appliance corresponding to the first rated power is the vehicle-mounted electrical appliance (motor), and the working parameters of the vehicle-mounted electrical appliance corresponding to the first rated power are the working parameters of the electrical appliance. In step S305, the angle corresponding to the unit vector of the working parameters of the electrical appliance and the steady-state change value is obtained to obtain the first angle.

[0088] Specifically, the steady-state change value can be expressed as a vector (ΔTemperature1, ΔI1, ΔV1, ΔTemperature2, ΔI2, ΔV2, Δrpm, ΔT) (where the values ​​of each component have been normalized), and the unit vector of the electrical appliance operating parameter is a vector in the same form as the first steady state or the second steady state, but with the values ​​of those components of the electrical appliance operating parameters being 1 and the values ​​of the other components being 0. For example, for the first steady state The components corresponding to the working parameters of the electrical appliances can be T1 is replaced by 1 and other components are replaced by 0, so as to obtain the unit vector of the working parameters of the electrical appliance (0, 0, 0, 1, 1, 1, 1). Based on the same principle, the unit vector of the working parameters of the power supply (1, 1, 1, 0, 0, 0, 0, 0) can also be obtained.

[0089] In step S305, the angle between the steady-state change value (ΔTemperature1, ΔI1, ΔV1, ΔTemperature2, ΔI2, ΔV2, Δrpm, ΔT) and the unit vector of the electrical appliance operating parameter (0, 0, 0, 1, 1, 1, 1, 1) is calculated to obtain a first angle θ1.

[0090] In step S305, the angle between the steady-state change value (ΔTemperature1, ΔI1, ΔV1, ΔTemperature2, ΔI2, ΔV2, Δrpm, ΔT) and the power supply operating parameter unit vector (1, 1, 1, 0, 0, 0, 0, 0) can also be calculated to obtain a second angle θ2.

[0091] In step S305, the unit vector of the electrical appliance working parameters (0, 0, 0, 1, 1, 1, 1, 1) and the unit vector of the power supply working parameters (1, 1, 1, 0, 0, 0, 0, 0) are two mutually orthogonal vectors, which can be regarded as vectors on two coordinate axes. Therefore, the first angle θ1 is equivalent to the degree to which the steady-state change value biases toward the unit vector of the electrical appliance working parameters, and the second angle θ2 is equivalent to the degree to which the steady-state change value biases toward the unit vector of the power supply working parameters.

[0092] Reference Figure 5 In step S305, the increase range of the required power is positively correlated with the first angle θ1. Specifically, the increase range of the required power can be directly determined according to the size of the first angle θ1, that is, the larger the first angle θ1 is, the larger the increase range of the required power is; or, according to the relative size of the first angle θ1 and the second angle θ2 The increase in the required power is determined in a positive correlation.

[0093] Reference Figure 5In step S305, the required power is increased within the range of the second rated power according to the increase range, that is, the increased required power does not exceed the second rated power. The increased required power is used as the power supply power.

[0094] The principle of step S306 is as follows Figure 6 See Figure 6 In part (a), if the required power is less than the first rated power, or greater than the second rated power, the power supply is set to the same size as the required power.

[0095] In this embodiment, the control unit adjusts the switching value of the switching device in itself so that the on-board power supply (power battery) outputs current to the on-board electrical appliances (motor) according to the power supply power determined in step S305 or S306, that is, the on-board electrical appliances (motor) also receive the power determined in step S305 or S306.

[0096] In this embodiment, the principle of executing steps S305-S306 is: Figure 6 As shown in part (a) of FIG, when the required power is less than the first rated power, that is, the required power is less than the rated power of both the on-board power supply device (power battery) and the on-board electrical appliances (motor), the on-board power supply device (power battery) and the on-board electrical appliances (motor) can work normally. Therefore, the power supply power is set according to the required power, thereby fully responding to the power demand event; Figure 5 As shown, when the required power is greater than the first rated power and less than the second rated power, it indicates that the required power exceeds the rated power of one of the on-board power supply (power battery) and the on-board electrical appliance (motor), but since the first rated power is not the rated power of the on-board electrical appliance (for example Figure 5 The corresponding vehicle electrical appliance (i.e., the motor) has a limit power. Within the design redundancy range of the vehicle electrical appliance, the vehicle electrical appliance can still work for a certain period of time if it exceeds the first rated power to a certain extent. The first angle θ1 represents the vehicle electrical appliance with a smaller rated power (e.g. Figure 5The contribution of the change in the working parameters of the corresponding on-board electrical appliance (i.e., the motor) to the steady-state change value (ΔTemperature1, ΔI1, ΔV1, ΔTemperature2, ΔI2, ΔV2, Δrpm, ΔT) after the vehicle-mounted electrical appliance (i.e., the motor) switches from the first steady state to the second steady state, the larger the first angle θ1, the smaller the contribution of the change in the working parameters of the on-board electrical appliance with a smaller rated power to the steady-state change value (ΔTemperature1, ΔI1, ΔV1, ΔTemperature2, ΔI2, ΔV2, Δrpm, ΔT), that is, the on-board electrical appliance with a smaller rated power is less sensitive to the change in the working parameters, and a larger power supply power can be set for the on-board electrical appliance with a smaller rated power, that is, a larger increase range, thereby providing a larger margin for meeting the required power; and the increased power supply power is below the second rated power, that is, when the on-board electrical appliance with a larger rated power (e.g. Figure 5 The normal range of the vehicle power supply device (i.e., the power battery) is ensured on the one hand to be within the normal working range of the vehicle electrical appliance with a larger rated power, and on the other hand to set a limit on the increase in the required power to avoid excessive power supply; Figure 6 As shown in part (b), when the demand power is greater than the second rated power, that is, the demand power is greater than the rated powers of both the on-board power supply (power battery) and the on-board electrical appliances (motor), it means that the power demand event may be an emergency event (for example, the driver slams on the accelerator to accelerate as quickly as possible). Therefore, the power supply power is set according to the demand power to fully respond to the power demand event.

[0097] Therefore, by executing steps S305-S306, Figure 6 (a) shows the normal situation and Figure 6 (b) In the emergency situation shown in Figure 2, the power demand event can be fully responded to, while Figure 5 When the required power shown is greater than the rated power of one of the vehicle electrical appliances, the power supply can be determined by appropriately increasing the required power within a range less than the rated power of the other vehicle electrical appliance, thereby maintaining a certain margin between the supplied power and the required power within the acceptable range of the vehicle electrical appliance with the smaller rated power, thereby meeting the need to respond to power demand events.

[0098] In this embodiment, Figure 1 The power supply control system and / or Figure 2 The power supply and utilization system shown is installed on the automobile, making it a part of the automobile, so that the automobile as a whole has the functions of the power supply and utilization control system and the power supply and utilization system.

[0099] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present disclosure are only relative to the relative positional relationship of the components of the present disclosure in the accompanying drawings. The singular forms of "a" and "the" used in the present disclosure are also intended to include the plural forms, unless the context clearly indicates other meanings. In addition, unless otherwise defined, all technical and scientific terms used in this embodiment have the same meaning as those generally understood by technicians in this technical field. The terms used in the specification of this embodiment are only for describing specific embodiments, not for limiting the present invention. The term "and / or" used in this embodiment includes any combination of one or more related listed items.

[0100] It should be understood that, although the term first, second, third etc. may be adopted to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish the same type of elements from each other. For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element. The use of any and all examples or exemplary language ("for example", "such as" etc.) provided by the present embodiment is only intended to better illustrate embodiments of the present invention, and unless otherwise required, the scope of the present invention will not be limited.

[0101] It should be appreciated that embodiments of the present invention may be implemented or enforced by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable memory. The method may be implemented in a computer program using standard programming techniques - including a non-transitory computer-readable storage medium configured with a computer program, wherein the storage medium so configured causes the computer to operate in a specific and predefined manner - according to the methods and drawings described in the specific embodiments. Each program may be implemented in a high-level procedural or object-oriented programming language to communicate with a computer system. However, if desired, the program may be implemented in assembly or machine language. In any case, the language may be a compiled or interpreted language. In addition, the program may be run on a programmed dedicated integrated circuit for this purpose.

[0102] In addition, the operations of the process described in this embodiment may be performed in any suitable order, unless otherwise indicated in this embodiment or otherwise clearly contradicted by the context. The process described in this embodiment (or variations and / or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as a code (e.g., executable instructions, one or more computer programs, or one or more applications) executed on one or more processors in common, by hardware or a combination thereof. A computer program includes a plurality of instructions that may be executed by one or more processors.

[0103] Further, the method can be implemented in any type of computing platform that is operably connected to a suitable computer, including but not limited to a personal computer, a minicomputer, a mainframe, a workstation, a network or distributed computing environment, a separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, etc. Various aspects of the present invention can be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, an optical read and / or write storage medium, a RAM, a ROM, etc., so that it can be read by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the process described herein. In addition, the machine-readable code, or part thereof, can be transmitted via a wired or wireless network. When such media includes instructions or programs that implement the above steps in conjunction with a microprocessor or other data processor, the invention of this embodiment includes these and other different types of non-transitory computer-readable storage media. When programmed according to the methods and techniques of the present invention, the present invention also includes the computer itself.

[0104] The computer program can be applied to input data to perform the functions of the present embodiment, thereby converting the input data to generate output data stored in a non-volatile memory. The output information can also be applied to one or more output devices such as a display. In a preferred embodiment of the present invention, the converted data represents a physical and tangible object, including a specific visual depiction of the physical and tangible object produced on the display.

[0105] The above are only preferred embodiments of the present invention. The present invention is not limited to the above embodiments. As long as the technical effects of the present invention are achieved by the same means, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. Within the scope of protection of the present invention, its technical solutions and / or implementation methods may have various modifications and changes.

Claims

1. A power supply control system for a car, characterized in that: The power supply and use control system for a vehicle comprises: Control unit; the control unit is connected to the vehicle power supply and the vehicle electrical appliances respectively, as a part of the power supply line between the vehicle power supply and the vehicle electrical appliances; The control unit is used to detect the working parameters of the power supply and the working parameters of the electrical appliances, and control the power supply of the vehicle-mounted power supply to the vehicle-mounted electrical appliances according to the working parameters of the power supply and the working parameters of the electrical appliances; wherein the working parameters of the power supply are the working parameters of the vehicle-mounted power supply, and the working parameters of the electrical appliances are the working parameters of the vehicle-mounted electrical appliances.

2. The power supply and use control system for a vehicle according to claim 1, characterized in that: The controlling the power supply of the vehicle-mounted power supply to the vehicle-mounted electrical appliance according to the working parameters of the power supply and the working parameters of the electrical appliance comprises: Determining that the operating parameters of the power supply and the operating parameters of the electrical appliance reach a first steady state in a first time period; Determining that the operating parameters of the power supply and the operating parameters of the electrical appliance reach a second steady state in a second time period; the second time period is a time period after the first time period; The power supply is adjusted according to the first steady state and the second steady state.

3. The power supply and use control system for a vehicle according to claim 2, characterized in that: The step of determining that the operating parameters of the power supply and the operating parameters of the electrical appliance reach a first steady state in a first time period includes: Taking the current time period as the first time period; In the first time period, the values ​​of the working parameters of the power supply and the working parameters of the electrical appliance are measured, and the first steady state is determined according to the measured results.

4. The power supply and use control system for a vehicle according to claim 2, characterized in that: The determining that the operating parameters of the power supply and the operating parameters of the electrical appliance reach a second steady state in the second time period includes: During the first time period, detecting a power demand event; According to the power demand event, the values ​​of the power supply operating parameters and the electrical appliance operating parameters in the second time period are predicted, and the second steady state is determined according to the prediction result.

5. The power supply and use control system for a vehicle according to claim 4, characterized in that: The predicting, according to the power demand event, the values ​​of the power supply operating parameters and the electrical appliance operating parameters in the second time period, and determining the second steady state according to the prediction result, includes: Determining a time change value according to the first time period and the second time period; Determining a steady-state change value according to the power demand event and the time change value; The second steady state is determined according to the first steady state and the steady state change value.

6. The power supply and use control system for a vehicle according to claim 4 or 5, characterized in that: The step of adjusting the power supply according to the first steady state and the second steady state includes: determining a steady-state change value according to the first steady-state and the second steady-state; Determining a time change value according to the first time period and the second time period; Determining a steady-state change rate according to the steady-state change value and the time change value; When the steady-state change rate is greater than a rate threshold, obtaining the required power required by the power demand event; When the required power is greater than the first rated power and less than the second rated power, the power supply power is determined according to the steady-state change value; wherein the first rated power is the minimum value between the rated power of the vehicle power supply and the rated power of the vehicle electrical appliances, and the second rated power is the maximum value between the rated power of the vehicle power supply and the rated power of the vehicle electrical appliances.

7. The power supply and use control system for a vehicle according to claim 6, characterized in that: The determining the power supply power according to the steady-state change value comprises: Obtaining a first angle; wherein the first angle is the angle between a unit vector of a working parameter of the on-board electrical appliance corresponding to the first rated power and the steady-state change value; Determining an increase range of the required power according to the first angle; wherein the increase range is positively correlated with the first angle; Within the range of the second rated power, increasing the required power according to the increase amplitude; The increased required power is determined as the supplied power.

8. The power supply and use control system for a vehicle according to claim 6, characterized in that: The adjusting the power supply according to the first steady state and the second steady state further includes: When the required power is less than the first rated power or greater than the second rated power, the required power is determined as the power supply power.

9. A power supply system for a car, characterized in that: The power supply system for a vehicle comprises: The power supply and use control system for a vehicle according to any one of claims 1 to 8; On-board power supply; Car electrical appliances.

10. An automobile, characterized in that: The automobile comprises: The power supply and use control system for a vehicle according to any one of claims 1 to 8; or The power supply system for a vehicle as claimed in claim 9.

Images