Method for controlling a physical parameter of a vehicle battery

Abstract

The invention relates to a method for controlling a physical parameter of vehicle equipment (1), particularly of an electric vehicle, the equipment comprising a plurality of sensors (34) electrically connected to an electronic control unit (36) and configured to measure a physical parameter, the electronic control unit (36) also comprising at least one pre-recorded threshold value and being configured to receive the measured values ​​from the plurality of sensors (34) and to send a reference value of the physical parameter to a computer, said method comprising the steps of: - receiving the parameter values ​​measured by the plurality of sensors (34), - calculating a reference value of the measured physical parameter, by interpolating the plurality of received values, - receiving and processing, by the computer (20), the calculated reference value, - activation, by the computer (20),of vehicle functions (1) as a function of the received reference value. Figure for the abbreviation: Fig 6,

Description

Title of the invention: Method for controlling a physical parameter of a vehicle battery technical field

[0001] The present invention relates to the field of vehicles and more particularly concerns a method for controlling a measured physical parameter. Prior art

[0002] Today, more and more functions of commercial vehicles are performed by electronic components, requiring a power supply provided by one or more batteries.

[0003] Batteries are increasingly used in vehicles equipped with an electric motor, whether hybrid or fully electric. These vehicles can be four-wheeled (for motor vehicles) or two-wheeled.

[0004] Due to the importance of batteries, it is important to control several physical parameters of said batteries in order to avoid premature wear and prevent potential safety risks.

[0005] For example, if the battery temperature is too low, the battery may degrade more rapidly, and if the temperature is too high, the battery presents a risk to vehicle safety.

[0006] To monitor the condition of the batteries, a set of measuring sensors is installed. For example, for temperature, several sensors can measure the temperature at different locations on the battery. The measurements taken by these sensors are sent to automated systems, such as control units, which activate different functions depending on the measurements received. For example, the control unit can reduce the torque supplied by the electric motor to limit power consumption if a battery has an abnormal temperature.

[0007] With a plurality of sensors, for the sake of simplicity, it is preferable for the computer to receive a reference value for the measured physical parameter that synthesizes the plurality of measurements. An obvious way to synthesize this plurality of measurements is to calculate its average value. Thus, a single overall reference value is obtained.

[0008] However, in the event of dispersion of the measurements, the calculation of the average may lead to neglecting extreme values ​​of the measurements which would signify potential risks.

[0009] Thus, if one sensor measures a high temperature at a point in the battery, because overheating is occurring locally, but the others measure At lower temperatures, the calculated average may remain close to a temperature considered normal. In this situation, the vehicle's computer does not activate a safety function, and overheating may then spread and worsen before being detected.

[0010] One solution is to add a comparison with one or more thresholds to the calculation of the average. In the previous example, if a single temperature is below or above one of these thresholds, the computer sends activation signals to safety systems even if the calculated average temperature remains within the range between the thresholds.

[0011] This solution allows extreme values ​​to be taken into account while calculating the average, but in addition to requiring the computer to take into account two additional values ​​for the thresholds, it can cause a sudden jump for the vehicle's systems.

[0012] Indeed, it is possible that an average value may be far from the thresholds while a sensor measures a rapid increase in temperature, which means that crossing the threshold by the measurement of this sensor suddenly triggers the sending of activation signals by the computer to the safety systems, which thus switch abruptly into a safety mode.

[0013] There is therefore a need for a simple and effective solution to remedy at least some of these drawbacks. Description of the invention

[0014] To this end, the invention first relates to a method for controlling a physical parameter of vehicle equipment, particularly of an electric vehicle, said vehicle comprising said equipment, an electronic control unit and a computer, the equipment comprising a plurality of sensors electrically connected to said electronic control unit and configured to measure a physical parameter, the electronic control unit also comprising a memory area in which at least one threshold value is pre-recorded, the electronic control unit being configured to receive the measured values ​​of the physical parameter from the plurality of sensors and to send a reference value of the physical parameter to the computer, said method comprising the steps of:

[0015] - reception, by the electronic control unit, of the values ​​of the physical parameter measured by a plurality of sensors,

[0016] - calculation, by the electronic control unit, of a reference value of the parameter measured physical values, by comparing the received values ​​to at least one pre-recorded threshold, and in which:

[0017] - if at least one received value crosses the threshold, the reference value is determined equal to the said value received,

[0018] - and if none of the values ​​received by the plurality of sensors crosses the threshold The pre-recorded reference value is calculated as an interpolation of the plurality of received values, in which each value is weighted by a function of the difference between the values ​​and at least one pre-recorded threshold.

[0019] - sending, by the electronic control unit, the reference value calculated at calculator,

[0020] - reception and processing, by the computer, of the calculated reference value,

[0021] - activation, by the computer, of vehicle functions according to the value of Reference received.

[0022] The method according to the invention thus makes it possible to determine a reference value that is representative of a plurality of values ​​measured by the sensors for a given physical parameter, while taking into account extreme values, below or above predefined thresholds. A single value is thus sent to the computer, which can then send specific commands if at least one measured value of the physical parameter is below or above the threshold. The reference value is therefore both representative of the measured values ​​and, at the same time, allows the system to react to extreme values.

[0023] Preferably, if several received values ​​cross the threshold, the reference value is taken as the highest or lowest value, depending on whether the threshold considered is a high threshold or a low threshold.

[0024] In a first embodiment of the vehicle, said equipment is at least an electric battery. The method according to the invention then makes it possible to control one of the parameters of the vehicle's electric battery.

[0025] In this embodiment, the vehicle comprises a plurality of electric batteries, each comprising a set of sensors.

[0026] In a first operating mode, the physical parameter is the battery temperature. Battery temperature is an important parameter to control, as it strongly impacts battery performance, and thermal anomalies can pose a risk to the safety of the vehicle and its users.

[0027] Preferably, the temperature is measured at several points of at least one battery to more accurately control the behavior of the battery.

[0028] In a second mode of operation, the battery comprises a plurality of electrical cells, each electrical cell being connected to an electrical charge sensor, and the physical parameter measured is the charge level of each cell. The method then makes it possible to measure a reference value representative of the evolution of the electrical charge level of all cells, in order to adapt the consumption of the motor for example.

[0029] In a second embodiment, the equipment is a rotating throttle handle, and the physical parameter is the rotation of said handle. This embodiment preferably corresponds to a two-wheeled vehicle in which the user actuates the handle with a rotation corresponding to the desired vehicle acceleration.

[0030] Preferably in this embodiment, the rotary throttle handle comprises two rotation sensors, each rotation sensor further comprising at least two sensors for measuring rotation. These sensors deliver signals that are coherent with each other, but with possible tolerances relative to each other for greater robustness of the measurements.

[0031] Preferably, a plurality of thresholds are pre-recorded in the memory area. This makes it possible to take into account several specific cases in the method of controlling the physical parameter, in which several distinct ranges of values ​​are considered critical.

[0032] Advantageously, two thresholds are pre-recorded in the memory area, a high threshold and a low threshold, and the determination of the reference value of the measured physical parameter consists of, if at least one value measured by a sensor is less than the low threshold or greater than the high threshold, taking as the reference value the corresponding measured value, and, if all the values ​​measured by the plurality of sensors are between the low threshold and the high threshold, taking as the reference value an interpolation of the plurality of measured values, in which each measured value is weighted by a function of the difference between said measured value and the low threshold and the high threshold.This mode of operation corresponds to the classic cases of two thresholds, for example a maximum temperature and a minimum temperature or a maximum charge level and a minimum charge level for electric batteries and the cells they comprise, or a minimum rotation and a maximum rotation for the throttle handle.

[0033] Preferably, the interpolation of the plurality of measured values ​​is a linear interpolation, which allows the reference value to be calculated simply and quickly while ensuring the advantages of the reference value.

[0034] According to another aspect of the invention, it also relates to an electronic control unit, particularly for an electric vehicle, configured to be connected to a plurality of sensors for a physical parameter and to a computer, the electronic control unit comprising a memory area in which at least one threshold value is pre-recorded and being configured to:

[0035] - receive the measured values ​​of the parameter from the plurality of sensors,

[0036] - compare each received measurement value with at least one pre-recorded threshold and with the other values ​​received,

[0037] - calculate an interpolation of the plurality of measured values, in which each The measured value is weighted by a function of the difference between said measured value and at least one pre-recorded threshold.

[0038] - determine a reference value from the measured values ​​received,

[0039] - send the reference value to the computer.

[0040] Thus, the electronic control unit can implement the process according to the invention.

[0041] According to another aspect of the invention, it also relates to a vehicle comprising equipment, an electronic control unit as presented and a computer, said equipment comprising a plurality of sensors for measuring a physical parameter connected to the electronic control unit and said electronic control unit being configured to implement the method according to the invention.

[0042] In a first embodiment, the vehicle equipment is at least an electric battery.

[0043] In a second embodiment, the vehicle equipment is an accelerator handle. Brief description of the drawings

[0044] Other features and advantages of the invention will become apparent from the following description. This description is purely illustrative and should be read in conjunction with the accompanying drawings, in which:

[0045] [Fig-1] Fig. 1 schematically illustrates a motor vehicle implementing the first operating mode of the process according to the invention.

[0046] [Fig.2] Fig.2 schematically illustrates an electric battery of a motor vehicle implementing the first operating mode of the process according to the invention.

[0047] [Fig.3] The [Fig.3] is a graph of an illustrative example of temperature measurements taken by two sensors and of the representative reference value calculated by the method according to the invention.

[0048] [Fig.4] Fig.4 schematically illustrates a two-wheeled vehicle implementing the second operating mode of the process according to the invention.

[0049] [Fig.5] Fig.5 schematically illustrates an acceleration handle of a two-wheeled vehicle implementing the second operating mode of the method according to the invention.

[0050] [Fig.6] Fig.6 schematically illustrates the sequence of the first embodiment of the process according to the invention.

[0051] [Fig.7] Fig.7 schematically illustrates the sequence of the second embodiment of the process according to the invention. Description of the implementation methods

[0052] The method according to the invention is implemented in a vehicle 1.

[0053] Vehicle 1

[0054] In a first mode of operation, the method can be implemented in a vehicle 1 of the type electric or hybrid motor vehicle, as shown in [Fig.1], or of the type electric or hybrid motorized two-wheeler vehicle.

[0055] The vehicle 1 includes an electric motor 10, a computer 20 and a battery 30.

[0056] Alternatively, vehicle 1 may comprise a plurality of batteries 30.

[0057] The electric motor 10 provides the torque for the movement of the vehicle 1. The motor 10 is powered by the battery 30 and is connected to the computer 20.

[0058] In a second mode of operation, the process is implemented in a vehicle 1 of the type electric or hybrid motorized two-wheel vehicle as shown in [Fig.4].

[0059] For this mode of operation, the vehicle 1 includes an engine 10, a computer 20 and an accelerator handle 40.

[0060] The calculator 20 is configured to adapt the performance of the engine 10.

[0061] Preferably, the calculator 20 is integrated into the motor 10.

[0062] Alternatively, the calculator 20 is included in the battery 30.

[0063] Battery 3 0

[0064] As shown in [Fig.2], the battery 30 comprises a set of cells 32, a set of sensors 34 and an electronic control unit 36.

[0065] In the example shown in [Fig.2], the battery 30 comprises two cells 32, and each cell 32 comprises a sensor 34.

[0066] Alternatively, each cell 32 can include a plurality of sensors 34, and the battery 30 can include sensors 34 elsewhere than on the cells 32.

[0067] In this embodiment shown in [Fig.2], the sensors 34 are temperature sensors which measure a temperature value at a point in the cell 32.

[0068] As shown in the graph in [Fig.3], one sensor 34 measures the temperature T1 (represented by the circles) and the other sensor 34 measures the temperature T2 (represented by the triangles).

[0069] In another embodiment, the sensors 34 can be electrical charge sensors that measure the charge level of each of the cells 32.

[0070] The sensors 34 are electrically connected to the electronic control unit 36. The electronic control unit 36 ​​is electrically connected to the computer 20.

[0071] The electronic control unit 36 ​​is configured to receive the values ​​measured by the set of sensors 34, compare them with each other and with pre-recorded values ​​and perform mathematical operations on these values ​​to calculate a reference value.

[0072] The electronic control unit 36 ​​also includes a memory area in which two temperature threshold values ​​are pre-recorded, a minimum temperature threshold Smin and a maximum temperature threshold Smax.

[0073] The minimum temperature threshold Smin corresponds to the temperature below which the use of the battery 30 is likely to result in a higher charge consumption.

[0074] The maximum temperature threshold Smax corresponds to the temperature above which the battery 30 presents a risk of degradation which may lead to a thermal incident.

[0075] In the illustrative measurements shown in the graph in [Fig. 3], the maximum temperature threshold Smax is set at 35°C and the minimum temperature threshold Smin is set at 10°C. The maximum temperature threshold Smax and the minimum temperature threshold Smin are represented by the broken lines.

[0076] In another mode of operation, the thresholds recorded in the memory area of ​​the electronic control unit 36 ​​are electrical charge thresholds.

[0077] Throttle grip 40

[0078] As shown in [Fig.5], the throttle handle 40 includes a handle 42 which extends along a longitudinal axis X and a knob 44 fitted onto the handle 42 which can rotate in both directions around the longitudinal axis X.

[0079] The throttle handle 40 is configured to generate control signals representative of an acceleration command for the engine 10 of the vehicle 1 during its operation when a user turns the wheel 44 in a so-called direct direction around the longitudinal axis X.

[0080] For example, the direct direction may correspond to the anti-trigonometric direction with respect to the direction of the longitudinal axis X.

[0081] The throttle handle 40 includes two rotation sensors 46 connected to an electronic control unit 48. The rotation sensors 46 both measure the rotation of the wheel 44 when a user operates the throttle handle 40.

[0082] Preferably, the rotation sensors 46 further comprising at least two sensors for measuring the rotation of the wheel 44. These sensors deliver signals that are coherent with each other, but with possible tolerances with respect to each other.

[0083] The electronic control unit 48 is configured to receive the values ​​measured by the two rotation sensors 46 and perform mathematical operations on these values ​​to calculate a reference value.

[0084] The electronic control unit 48 also includes a memory area in which two rotation threshold values, a maximum value and a minimum value, are pre-recorded.

[0085] The maximum value and the minimum value correspond to the minimum rotation and the maximum rotation of the wheel 44, i.e. a rotation of 100% and a rotation of 0%.

[0086] The electronic control unit 48 is configured to send the reference value to the computer 20.

[0087] Example of implementation

[0088] The control process is carried out iteratively and is therefore repeated over time.

[0089] In the first operating mode shown schematically in [Fig.6] and in the example illustrated in [Fig.2], step El of the process consists of the measurement by the sensors 34 of the temperature of the two cells 32 of the battery 30 and the sending by the sensors 34 of the measured values ​​to the electronic control unit 36.

[0090] In a step E2, the measured values ​​are received by the electronic control unit 36.

[0091] In a step E3, the electronic control unit 36 ​​determines a reference value from the measured values ​​received.

[0092] This step E3 includes a first substep E3-1 for comparing each of the two measured temperature values. This substep allows the maximum measured temperature Tmax and the minimum measured temperature Tmin to be determined.

[0093] In a second substep E3-2, the maximum measured temperature Tmax and the minimum measured temperature Tmin are compared respectively with the maximum temperature threshold Smax and the minimum temperature threshold Smin.

[0094] If the maximum measured temperature Tmax is greater than the maximum temperature threshold Smax, then the electronic control unit 36 ​​sets the reference value Tref to be equal to this maximum measured temperature Tmax. Thus, if several temperature values ​​are greater than the maximum temperature threshold Smax, the electronic control unit 36 ​​sets the reference value Tref to be equal to the highest of these measured temperature values.

[0095] If the measured minimum temperature Tmin is lower than the minimum temperature threshold Smin, then the electronic control unit 36 ​​sets the reference value Tref to be equal to this measured minimum temperature Tmin. Thus, if several temperature values ​​are lower than the minimum temperature threshold Smin, then the electronic control unit 36 ​​sets the reference value Tref to be equal to the lowest measured temperature value among these values. . -T • • C • = LS - T nan X^max 'max

[0096] Normally, the temperatures measured by the sensors 34 are close, even if they may not have the same value. Advantageously, if too large a difference is determined between the maximum measured temperature Tmax and the minimum measured temperature Tmin, in particular if one is above the maximum temperature threshold Smax and the other is below the minimum temperature threshold Smin, special procedures are triggered by the control unit 20.

[0097] If the maximum measured temperature Tmax and the minimum measured temperature Tmin are both above the minimum temperature threshold Smin and below the maximum temperature threshold Smax, the electronic control unit 36 ​​calculates the reference value Tref from a linear interpolation.

[0098] Preferably, this calculation corresponds to a weighted average of the two measured temperature values:

[0099] [Math.l] r' t 4-P t min1 nùn ref — C +C >

[0100] where Tref is the reference value to be calculated, Tmax and Tmin are respectively the highest and lowest temperatures measured by the two sensors 34 at the same time, and the weighting coefficients Cmax and Cmin are calculated as follows:

[0101] [Math.2] C = LS max | °

[0102] with Smin the minimum temperature threshold and Smax the maximum temperature threshold.

[0103] Tmax and Tmin being respectively the highest temperature and the lowest temperature measured by the two sensors 34 at the same instant, they can come indifferently from the measurements of either of the sensors 34.

[0104] These coefficients ensure that the function of the reference value is continuous between the maximum temperature threshold Smax and the minimum temperature threshold Smin, thus avoiding significant jumps. The closer a temperature measurement is to the maximum temperature threshold Smax, the larger its weighting coefficient and the lower the weighting coefficient of the other measured temperatures.

[0105] Conversely, the closer a temperature measurement is to the minimum temperature threshold Smin, the greater its weighting coefficient and the lower the weighting coefficient of the other measured temperatures.

[0106] In particular, if a sensor 34 measures a temperature equal to the maximum temperature threshold Smax, the weighting coefficient of the other measured temperature values ​​is equal to zero, which ensures that the calculated reference value is at least equal to the highest measured temperature and therefore to the temperature threshold maximum Smax. The connection with the value of the reference value determined if a temperature measurement is higher than the upper value is therefore continuous.

[0107] Conversely, if a sensor 34 measures a temperature equal to the minimum temperature threshold Smin, the weighting coefficient of the other measured temperature values ​​is equal to zero, which ensures that the calculated reference value is at least equal to the lowest measured temperature and therefore to the minimum temperature threshold Smin. The correlation with the determined reference value if a temperature measurement is lower than the minimum value is therefore continuous.

[0108] The reference value Tref, derived from the measured temperature values ​​Tl and T2, is represented on the graph in [Fig. 3] by the dashed line. When the temperature measured by one of the sensors 34 exceeds a threshold, the reference value Tref is equal to that temperature. If both measured temperature values ​​Tl and T2 exceed the same threshold, the reference value Tref is equal to the higher or lower measurement, depending on the relevant threshold.

[0109] The arithmetic mean of the temperatures T1 and T2, denoted Tmoy, is also represented on the graph in [Fig. 3] as a dashed line. In this illustrative example, it is indeed possible, as in the first half of the graph, for a temperature (here T1) to be above the maximum temperature threshold Smax but for the arithmetic mean Tmoy to remain below this maximum temperature threshold Smax.

[0110] Calculating the arithmetic mean Tmoy would therefore lead to a delay or even an absence of the detection of the thermal anomaly, whereas the reference value Tref is equal to the temperature Tl as soon as it is equal to the maximum temperature threshold Smax, avoiding any delay.

[0111] Once the reference value Tref has been calculated, the electronic control unit 36 ​​sends it to the computer 20 in a step E4.

[0112] Once the reference value Tref is received, the computer 20 compares it in a step E5 to the maximum temperature threshold Smax and the minimum temperature threshold Smin and sends a control command to the motor 10 according to the comparison.

[0113] For example, the computer 20 can send a braking command to the engine 10 if the reference value Tref is greater than the maximum temperature threshold Smax, in order to reduce the risk that the thermal anomaly thus detected will amplify or propagate.

[0114] The control unit 20 can also send a braking command to the motor 10 if the reference value Tref is below the minimum temperature threshold Smin, in order to reduce the electrical consumption of the vehicle 1. Indeed, below At certain temperatures, the efficiency of the 30 batteries decreases sharply and the same consumption causes a faster drop in charge.

[0115] In the embodiment in which the sensors 34 are load sensors measuring the charge level of the cells 32, the process takes place similarly, with the measurement of the charge levels of the two cells 32 by the sensors 34 in step E1, the receipt by the electronic control unit 36 ​​of the measured values ​​in step E2, the determination of a reference value by the electronic control unit 36 ​​in a step E3, the sending of this reference value to the computer 20 in step E4 and the comparison by the computer 20 in a step E5 to adapt the speed of the engine 10.

[0116] In the second mode of operation and in the example illustrated in [Fig.4], the method makes it possible to measure the rotation of the wheel 44 when the user operates the throttle handle 40. Indeed, the two rotation sensors 46 can measure slightly different values ​​from each other.

[0117] In the first step Fl of the process consists of measuring the rotation of the wheel 44 by the two rotation sensors 46 and subsequently sending the measured values ​​to the electronic control unit 48.

[0118] In a step F2, the measured values ​​are received by the electronic control unit 48.

[0119] In a step F3, the electronic control unit 48 determines a reference value for the rotation of the handle from the measured values ​​received.

[0120] Preferably, this step F3 is carried out by calculating a weighted average of the two measured rotation values:

[0121] [Math.3] jy __ niaxRyuix+t' Kref ~ c' +c' min

[0122] where Rref is the reference value to be calculated, Rmax and Rmin are respectively the highest and lowest rotations measured by the two rotation sensors 46 at the same instant, and the weighting coefficients C'max and C'min are calculated as follows:

[0123] [Math.4] ^max =^rmn'^Jmin~

[0124] These coefficients ensure that between the maximum rotation of 100% and the minimum rotation of 0%, the function of the reference value is continuous and thus avoids the significant jumps. The closer one rotation measure is to 100%, the larger its weighting coefficient and the lower the weighting coefficient of the other rotation measure.

[0125] These coefficients thus ensure that if a measured rotation value is equal to 100% or 0%, the coefficient of the other measured rotation value is equal to 0. Thus, it is sufficient for a single sensor to measure a rotation of 100% for the calculated reference value Rref to be 100%, and conversely, for a single sensor to measure a rotation of 0% for the calculated reference value Rref to be 0%.

[0126] Once the reference value Rref has been calculated, the electronic control unit 48 sends it to the computer 20 in a step F4.

[0127] In a step F5, the computer 20 sends a control command to the motor 10 according to the reference value Rref received.

[0128] For example, the computer 20 can send a braking command to the motor 10 if the reference value Rref is equal to 0% because it is then detected that the user wants to brake the vehicle 1 abruptly.

[0129] The control unit 20 can also send a maximum acceleration command to the motor 10 if the reference value Rref is equal to 100%. Indeed, it is then detected that the user wants to accelerate to the maximum capacity of the vehicle 1.

[0130] The method according to the invention thus makes it possible to calculate a reference value that is representative of the different values ​​measured by the sensors 34, 46 and that takes threshold values ​​into account more transparently than the calculation of an arithmetic mean. The calculation is simple and quick, and the method can be implemented for different types of measurements (temperature, load, rotation, etc.) in several embodiments (motor vehicle or two-wheeled vehicle).

Claims

1. Demands A method for controlling a physical parameter of vehicle equipment (1), particularly of an electric vehicle, said vehicle (1) comprising said equipment, an electronic control unit (36, 48) and a computer (20), the equipment comprising a plurality of sensors (34, 46) electrically connected to said electronic control unit (36, 48) and configured to measure a physical parameter, the electronic control unit (36, 48) also comprising a memory area in which at least one threshold value is pre-recorded, the electronic control unit (36, 48) being configured to receive the values ​​of the physical parameter measured by the plurality of sensors (34, 46) and to send a reference value of the physical parameter to the computer (20), said method comprising the steps of: - reception (E2), by the electronic control unit (36, 48), of the values ​​of the physical parameter measured by the plurality of sensors (34, 46), - calculation (E3), by the electronic control unit (36, 48), of a reference value of the measured physical parameter, by comparing the received values ​​to at least one pre-recorded threshold and in which: • if at least one received value exceeds the threshold, the reference value is determined to be equal to said measurement, • and if none of the values ​​received by the plurality of sensors exceeds the pre-recorded threshold, the reference value is calculated as an interpolation of the plurality of received values, in which each value is weighted by a function of the difference between the values ​​and at least one pre-recorded threshold, - sending, by the electronic control unit (36, 48), of the calculated reference value to the computer (20), - reception and processing, by the calculator (20), of the calculated reference value, - activation, by the computer (20), of vehicle functions (1) according to the reference value received.

2. Method of controlling a physical parameter of a vehicle equipment (1), according to the preceding claim, wherein said equipment is at least an electric battery (30).

3. Method of controlling a physical parameter of a vehicle equipment (1) according to claim 2, wherein the physical parameter is the temperature of the battery (30).

4. Method of controlling a physical parameter of a vehicle equipment (1) according to claim 2, wherein at least one battery (30) comprises a plurality of electrical cells (32), each electrical cell (32) being connected to an electrical charge sensor (34) and wherein the physical parameter is the charge level of each electrical cell (32).

5. Method of controlling a physical parameter of a vehicle equipment (1) according to claim 1, wherein said equipment is a rotating throttle handle (40), and the physical parameter is the rotation of said throttle handle (40).

6. Method of controlling a physical parameter of a vehicle equipment (1) according to any one of the preceding claims, wherein a plurality of thresholds are pre-recorded in the memory area of ​​the electronic control unit (36, 48).

7. A method for controlling a physical parameter of a vehicle equipment (1) according to the preceding claim, wherein two thresholds are pre-recorded in the memory area, a high threshold and a low threshold, and wherein the determination of the reference value of the measured physical parameter consists of, if at least one value measured by a sensor is less than the low threshold or greater than the high threshold, taking as the reference value the corresponding measured value, and, if all the values ​​measured by the plurality of sensors are between the low threshold and the high threshold, taking as the reference value an interpolation of the plurality of measured values, wherein each measured value is weighted by a function of the difference between said measured value and the low threshold and the high threshold.

8. A method for controlling a physical parameter of a vehicle equipment (1) according to any one of the preceding claims, wherein the interpolation of the plurality of measured values ​​is a linear interpolation.

9. Electronic control unit (36, 48), particularly for electric vehicles, configured to be connected to a plurality of sensors (34, 46) of a physical parameter and to a computer (20), the electronic control unit (36, 48) comprising a memory area in which at least one threshold value is pre-recorded and being configured to: - receive the measured values ​​of the parameter from the plurality of sensors (34, 46), - compare each measured value received with the at least one pre-recorded threshold and with the other received values, - calculate an interpolation of the plurality of measured values, in which each measured value is weighted by a function of the difference between said measured value and the at least one pre-recorded threshold, - determine a reference value from the measured values ​​received, - send the reference value to the computer (20).

10. Vehicle (1) comprising equipment, an electronic control unit (36, 48) according to the preceding claim and a computer (20), said equipment comprising a plurality of sensors (34, 46) for measuring a physical parameter connected to the electronic control unit (36, 48) and said electronic control unit (36, 48) being configured to implement the method according to any one of claims 1 to 8.

11. Vehicle (1) according to the preceding claim, wherein the equipment is at least one electric battery (30).

12. Vehicle according to the preceding claim, wherein the equipment is an accelerator handle (40).

Images