ENERGY MANAGEMENT SYSTEM FOR A MOTOR VEHICLE AND METHOD FOR MANAGING ENERGY IN A MOTOR VEHICLE

Abstract

The invention relates to an energy management system for a motor vehicle, comprising a monitoring device adapted to monitor a position and/or a movement of a driver inside the motor vehicle, a driver's intention determination device adapted to determine the intention of the driver to use predetermined energy consuming devices of the motor vehicle based on the monitored position and/or movement of the driver, and an activating/deactivating device adapted to activate, and respectively deactivate, specific energy consuming devices among the predetermined energy consuming devices of the motor vehicle based on the determined driver's intention.

Claims

1. An energy management system for a motor vehicle, comprising: a monitoring device adapted to monitor a position and/or a movement of a driver inside the motor vehicle; a driver's intention determination unit adapted to determine the intention of the driver to use specific energy consuming device(s) of the motor vehicle based on the monitored position and/or movement of the driver; and a control unit adapted to reduce the consumption of energy consuming devices other than the specific energy consuming device(s) of the motor vehicle based on the determined driver's intention.

2. The system of claim 1, wherein the monitoring device is adapted to monitor the position of the driver inside the motor vehicle based on signals provided by at least one position sensor.

3. The system of claim 2, wherein the at least one position sensor is chosen among a bunk mattress sensor, a camera, a seat sensor, a radar sensor, and a lidar sensor.

4. The system of claim 1, wherein the monitoring device is adapted to monitor the movement of the driver inside the motor vehicle based on signals provided by at least one movement sensor.

5. The system of claim 4, wherein the at least one movement sensor is a camera.

6. The system of claim 1, wherein the specific energy consuming devices are chosen among an actuator adapted to move up and down the window of the right door, an actuator adapted to switch on or off the roof's light, an actuator to switch on or off a light symbol on the dashboard, an actuator adapted to switch on or off a light above the bunk, an actuator adapted to move up and down the window of the left door, an actuator adapted to lock or unlock the steering wheel, and an actuator adapted to operate an air bag.

7. The system of claim 1, wherein the driver's intention determination device and the control device correspond to an electronic control unit of the motor vehicle.

8. The system of claim 1, wherein the control device is adapted to keep specific energy consuming devices power supplied.

9. A vehicle comprising the energy management system of claim 1, the vehicle being preferably a truck.

10. A method for managing energy in a motor vehicle, comprising the steps of: monitoring a position and/or a movement of a driver inside the motor vehicle; determining a driver's intention to use specific energy consuming devices of the motor vehicle based on the monitored position and/or movement of the driver; and reducing energy consumption of energy consuming devices other than the specific energy consuming devices of the motor vehicle based on the determined driver's intention.

11. The method of claim 10, wherein the monitoring comprises the monitoring of the position of the driver inside the motor vehicle based on signals provided by at least one position sensor.

12. The method of claim 11, wherein the at least one position sensor is chosen among a bunk mattress sensor, a camera, a seat sensor, a radar sensor, and a lidar sensor.

13. The method of claim 10, wherein the monitoring comprises the monitoring of the movement of the driver inside the motor vehicle based on signals provided by at least one movement sensor.

14. The method of claim 10, wherein the energy consumed by devices other than the specific energy consuming devices is reduced to a minimum level (“sleep mode”) or to zero (deactivated).

15. The method of claim 14, whereby any energy consuming device other than ones included in the specific energy consuming devices is switched to a sleep mode where it consumes a minimum level of energy.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] With reference to the appended drawings, below follows a more detailed description of embodiments of the invention cited as examples.

[0022] In the drawings:

[0023] FIGS. 1A and 1B respectively illustrates a bus and a truck in which an energy management system according to the present disclosure may be incorporated;

[0024] FIG. 2 is a diagram illustrating an energy management system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS OF THE INVENTION

[0025] The present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiment of the present disclosure are shown. This disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiment set forth herein; rather, this embodiment is provided for thoroughness and completeness, and fully convey the scope of the disclosure to the skilled addressee.

[0026] Referring now to the drawings and to FIGS. 1A, 1B and 2 in particular, there is in FIG. 1A depicted an exemplary vehicle, here illustrated as a bus 10a, in which an energy management system 100 according to the present disclosure may be incorporated. The system 100 may of course be implemented, possibly in a slightly different way, in a truck 10b as shown in FIG. 1B, a car, etc. The vehicle may for example be one of a Battery Electric Vehicle (BEV) or Hybrid Electric Vehicle (HEV), or possibly a gas/gasoline/diesel vehicle. The vehicle comprises an electric machine (in case of being an electric or hybrid vehicle) or an engine (such as an internal combustion engine in case of being a gas/gasoline/diesel vehicle).

[0027] With further reference to FIG. 2, the system 100 comprises an Electronic Control Unit (ECU) 200 electrically connected via a plurality of connecting lines to corresponding sensors 101-105.

[0028] The ECU 200 is also connected via a plurality of control lines to corresponding electrically controllable vehicle components 111-117.

[0029] The ECU 200 can therefore be considered as a device for activating and deactivating any one of the electrically components 111-117. In other words, the ECU 200 controls the activation of said components 111-117. ECU 200 also controls power consumption of said components 111-117.

[0030] The sensors 101-105 are adapted to sense the position and/or the movement of the driver inside the cab of the vehicle. The sensors may for example include a sensor 101 for sensing whether a pressure/weight is applied on a mattress of a bunk installed at the rear of the cab of a truck. Another sensor 102 may consist in a camera mounted inside the cab of the truck, the field of vision of said camera would be oriented to the opposite of the road (rearwards). Another sensor 103 may be adapted to sense whether a pressure/weight is applied on a seat of the truck, e.g. driver's seat. Other sensors 104 may consist in radar or lidar sensors mounted inside the cab of the truck. Other sensors 105 may be further provided for sensing other data relative to the location and/or movement of the driver in the cab.

[0031] The electrically controllable vehicle components (also known as “devices”) may for example include an actuator 111 adapted to move up and down the windows, an actuator 112 adapted to switch on or off the roof's light, an actuator 113 to switch on or off a light symbol on the dashboard, an actuator 114 adapted to switch on or off a light above the bunk, an actuator 115 adapted to move up and down the window of the left door, an actuator 116 adapted to lock or unlock the steering wheel, and further actuators 117 adapted to operate further equipment of the vehicle, like an air bag.

[0032] Based on the signals received from the sensors 101-105, the ECU 200 may determine the intention of the driver to use specific components among the electrically controllable vehicle components 111-117.

[0033] After the determination of the driver's intention, the ECU 200 activates the specific energy consuming components/devices that the driver may need in a close future and deactivate the other components. The activating step may consist in providing electrical power to the needed components to a normal level that allows using the components by the driver and the deactivating step may consist in reducing the electrical power provided to the unneeded components to a low level that does not enable using said components by the driver. Thus, the system 100 allows to reduce the overall power consumption of the vehicle by reducing the energy consumed by the components other than (or excluded from) the specific energy consuming devices.

[0034] For example, the “low level” to which it is referred to above can also be known as a “sleep mode” in which the concerned component(s) remain supplied with the minimum of electric energy but need to be waken up before activated.

[0035] In variant, the “low level” can also be a zero level, meaning that concerned components are completely switched off and do not consume any electrical energy.

[0036] Several examples are provided below to better illustrate the method for managing energy of the present invention.

[0037] In these examples, the motor vehicle is a truck and the driver has the possibility to choose different positions inside the cab of the truck, depending on the vehicle situation, e.g. running, parking, living, autonomous driving.

[0038] In a first possible scenario, when the truck is in a living situation and the driver is positioned in a bunk area of the cab, the sensor 101 sends a signal to the ECU 200 informing of the presence of the driver in the bunk area. This signal indicates to the ECU 200 that the driver intends to use the component 114 (e.g. bunk screen). Therefore, the actuators 111, 112, 113, 115 and 117 do not need to be available. The ECU 200 thus transfers these actuators into a low consumption state whereas the actuator 114 for the bunk is transferred into a normal consumption state.

[0039] In a second possible scenario, when the truck is in an autonomous driving situation and the driver is sitting in his normal driving position, the sensor 103 sends a signal to the ECU 200 informing of the presence of the driver in the driver's seat. This signal indicates to the ECU 200 that the driver intends to use the components 113, 115, 116 and 117 (e.g. infotainment, HVAC or phone services). Therefore, the actuators 111, 112 and 114 (e.g. CMS screens) do not need to be available. The ECU 200 thus transfers these actuators into a low consumption state whereas the actuator 113, 115, 116 and 117 are transferred into a normal consumption state.

[0040] In a third possible scenario, when the truck is in a living situation and the driver is sitting on the passenger side, the sensor 103 sends a signal to the ECU 200 informing of the presence of the driver in the passenger's seat. This signal indicates to the ECU 200 that the driver intends to use the components 111 and 113 (e.g. USB plug or passenger screen). Therefore, the actuators 112 and 114 to 117 do not need to be available. The ECU 200 thus transfers these actuators into a low consumption state whereas the actuator 111 and 113 are transferred into a normal consumption state.

[0041] It is to be understood that the present invention is not limited to the embodiments described above and illustrated in the drawings; rather, the skilled person will recognize that many changes and modifications may be made within the scope of the appended claims.