Description:FIELD OF THE INVENTION
The embodiments of the present disclosure relate generally to consumption of battery energy and particularly to provide controlled extraction of energy from two-wheeler electric vehicle.

BACKGROUND OF THE INVENTION
With increase in scientific development across automobile sectors, the demand for efficient battery packs is also increasing because of their functionality to provide better power and support auxiliary units of an electric vehicle. In the electric vehicles the usage of battery packs is ineluctable. Lithium-Ion battery packs comprise a plurality of battery cells capable of providing the required power to the electric vehicles. In order to provide better battery power optimization, the electrical components such as battery management system (BMS) and vehicle control unit (VCU) are integrated together.

The VCU capable of receiving user generated signals is connected to complete vehicle network. In sophisticated automotive wiring systems, the VCU controls vehicle operations or acts as a gateway between distinct controlled area network (CAN) buses. It performs responsibilities such as assessing and managing the lighting system, providing the necessary theft prevention and so on. These battery packs are quite restricted in providing energy to attached auxiliary units when the vehicle is set into dynamic motion and there is limited possibility of such conversion of energy to those aforementioned units in conventional battery packs.

PROBLEM TO BE SOLVED BY INVENTION
Currently, the battery packs provide enough energy to run the vehicle and to electrical components that are part of vehicle. However, there is no provision or device to provide energy from battery packs of electric two-wheeler to the external appliances.

Hence, it is a primary objective of the current invention to provide energy to the connected external appliances in case of emergency.
The above-mentioned shortcomings, disadvantages and problems are addressed herein, and which will be understood by reading and studying the following specification.

SUMMARY OF THE INVENTION
Various embodiments herein describe a method and system to provide controlled extraction of energy from two-wheeler electric vehicle. According to an embodiment of the present invention, a system to provide controlled extraction of energy from two-wheeler electric vehicle is disclosed. A key provides an ignition powered to the two-wheeler electric vehicle which is detected by a vehicle control unit (VCU). An external device is connected to a direct current (DC) inlet through a transmitting terminal which is detected by the VCU. A motor control unit (MCU) is disabled to prevent the two-wheeler electric vehicle from moving, upon detecting the external device connection by the VCU. A direct current (DC) contactor is enabled that allows transmission of energy to and from a battery pack after the MCU is disabled by the VCU. A battery management system (BMS) discharges energy from the battery pack through the enabled DC contactor upon receiving command from the VCU, wherein the discharged energy is transmitted from the battery pack to the external device connected to the DC inlet through the transmitting terminal.

According to another embodiment of the present invention, a method to provide controlled extraction of energy from two-wheeler electric vehicle is disclosed. The method includes the following steps. Detecting an ignition powered to the two-wheeler electric vehicle with a key by a vehicle control unit (VCU). Detecting a connection of an external device with a direct current (DC) inlet through a transmitting terminal by the VCU. Disabling a motor control unit (MCU) to prevent the two-wheeler electric vehicle from moving, upon detecting the external device connection by the VCU. Enabling a direct current (DC) contactor that allows transmission of energy to and from a battery pack after the MCU is disabled by the VCU. Discharging of energy from the battery pack through the enabled DC contactor upon receiving command from the VCU by a battery management system (BMS). Transmitting the discharged energy from the battery pack to the external device connected to the DC inlet through the transmitting terminal.

As per first embodiment of the current invention, transmitting of the discharged energy is protected with a direct current protection (DCP) circuit connected to the DC contactor.

As per second embodiment of the current invention, transmitting the discharged energy from the battery pack to the external device further includes transmitting the discharged energy from the external device to an electrical appliance.

As per third embodiment of the current invention, transmitting the discharged energy from the battery pack to the external device further includes conversion of direct current to an alternating current by the external device when the external device is connected to AC electrical appliance.

As per fourth embodiment of the current invention, transmitting the discharged energy from the battery pack to the external device further includes conversion of direct current to another level of direct current by the external device when the external device is connected to DC electrical appliance.

As per fifth embodiment of the current invention, discharging of energy from the battery pack through the enabled DC contactor further comprises monitoring and disengaging discharge of energy upon detecting any fault by the BMS.

As per sixth embodiment of the current invention, the transmitting terminal is an electrical charging gun.

The foregoing has outlined, in general, the various aspects of the invention and serves as an aid to better understanding the more complete detailed description which is to follow. In reference to such, there is to be a clear understanding that the present invention is not limited to the method or application of use described and illustrated herein. It is intended that any other advantages and objects of the present invention that become apparent or obvious from the detailed description or illustrations contained herein are within the scope of the present invention.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The other objects, features and advantages will occur to those skilled-in-the-art from the following description of the preferred embodiments and the accompanying drawings in which:

Figure 1 is a schematic block diagram illustrating controlled extraction of energy from two-wheeler electric vehicle, according to an embodiment of the present invention.

Figure 2 is a flow diagram illustrating controlled extraction of energy from two-wheeler electric vehicle, according to an embodiment of the present invention.

Further, those skilled-in-the-art will appreciate that elements in the figures are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the figures by conventional symbols, and the figures may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the figures with details that will be readily apparent to those skilled in the art having the benefit of the description herein.

DETAILED DESCRIPTION OF THE INVENTION
The present invention provides a method and system to provide controlled extraction of energy from two-wheeler electric vehicle. In the following detailed description of the embodiments of the invention, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled-in-the-art to practice the invention, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims.

The specification may refer to “an”, “one” or “some” embodiment(s) in several locations. This does not necessarily imply that each such reference is to the same embodiment(s), or that the feature only applies to a single embodiment. Single features of different embodiments may also be combined to provide other embodiments.

As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms “includes”, “comprises”, “including” and/or “comprising” when used in this specification, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/or” includes any and all combinations and arrangements of one or more of the associated listed items.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Embodiments of the present invention will be described below in detail with reference to the accompanying figures.

According to Figure 1, a system to provide controlled extraction of energy from two-wheeler electric vehicle is disclosed. A key (111) provides an ignition powered to the two-wheeler electric vehicle which is detected by a vehicle control unit (VCU) (101). An external device (102) is connected to a direct current (DC) inlet (103) through a transmitting terminal (104) which is detected by the VCU (101). A motor control unit (MCU) (105) is disabled to prevent the two-wheeler electric vehicle from moving, upon detecting the external device (102) connection by the VCU (101). A direct current (DC) contactor (107) is enabled that allows transmission of energy to and from a battery pack (108) after the MCU (105) is disabled by the VCU (101). A battery management system (BMS) (109) discharges energy from the battery pack (108) through the enabled DC contactor (107) upon receiving command from the VCU (101), wherein the discharged energy is transmitted from the battery pack (108) to the external device (102) connected to the DC inlet (103) through the transmitting terminal (104).

According to Figure 2, a method to provide controlled extraction of energy from two-wheeler electric vehicle is disclosed. The method includes the following steps. Detecting an ignition powered to the two-wheeler electric vehicle with a key (111) by a vehicle control unit (VCU) (101). Detecting a connection of an external device (102) with a direct current (DC) inlet (103) through a transmitting terminal (104) by the VCU (101). The VCU (101) detects the external device (102) via a controlled area network (CAN) cable (113). Usually, when the key (111) is switched ON, a motor control unit (MCU) (105) is triggered with the energy provided by the battery pack (108), thus making the vehicle move forward. Therefore, disabling a motor control unit (MCU) (105) and in turn a motor (106) to prevent the two-wheeler electric vehicle from moving, upon detecting the external device (102) connection by the VCU (101). Enabling a direct current (DC) contactor (107) that allows transmission of energy to and from a battery pack (108) after the MCU (105) is disabled by the VCU (101). Discharging of energy from the battery pack (108) through the enabled DC contactor (107) upon receiving command from the VCU (101) by a battery management system (BMS) (109). Transmitting the discharged energy from the battery pack (108) to the external device (102) connected to the DC inlet (103) through the transmitting terminal (104).

As per first embodiment of the current invention, transmitting of the discharged energy is protected with a direct current protection (DCP) circuit (112) connected to the DC contactor (107).

As per second embodiment of the current invention, transmitting the discharged energy from the battery pack (108) to the external device (102) further includes transmitting the discharged energy from the external device (102) to an electrical appliance (110).

As per third embodiment of the current invention, transmitting the discharged energy from the battery pack (108) to the external device (102) further includes conversion of direct current to an alternating current by the external device (102) when the external device (102) is connected to AC electrical appliance.

As per fourth embodiment of the current invention, transmitting the discharged energy from the battery pack (108) to the external device (102) further includes conversion of direct current to another level of direct current by the external device (102) when the external device (102) is connected to DC electrical appliance.

As per fifth embodiment of the current invention, discharging of energy from the battery pack (108) through the enabled DC contactor (107) further comprises monitoring and disengaging discharge of energy upon detecting any fault by the BMS (109).

As per sixth embodiment of the current invention, the transmitting terminal (104) is an electrical charging gun.

FURTHER ADVANTAGES OF THE INVENTION
The current invention provides a device to transmit energy from battery packs of two-wheeler electric vehicle to the external appliances. The current invention plays a vital role in case of emergencies such as incase of power cut at homes, immediate requirement of unpowered electrical appliance or if any other two-wheeler electrical vehicle needs additional battery energy.

Although the embodiments herein are described with various specific embodiments, it will be obvious for a person skilled in the art to practice the invention with modifications. However, all such modifications are deemed to be within the scope of the claims. It is also to be understood that the following claims are intended to cover all the generic and specific features of the embodiments described herein and all the statements of the scope of the embodiments which as a matter of language might be said to fall there between.

REFERENCE TABLE

S.No. Name Numbering
1. a vehicle control unit (VCU) 101
2. an external device 102
3. a direct current (DC) inlet 103
4. a transmitting terminal 104
5. a motor control unit (MCU) 105
6. a motor 106
7. a direct current (DC) contactor 107
8. a battery pack 108
9. a battery management system (BMS) 109
10. an electrical appliance 110
11. a key 111
12. a direct current protection (DCP) circuit 112
13. a controlled area network (CAN) cable 113

, Claims:CLAIMS
We claim:

1. A method to provide controlled extraction of energy from two-wheeler electric vehicle, the method comprising of:
detecting an ignition powered to the two-wheeler electric vehicle with a key (111) by a vehicle control unit (VCU) (101);
detecting a connection of an external device (102) with a direct current (DC) inlet (103) through a transmitting terminal (104) by the VCU (101);
disabling a motor control unit (MCU) (105) to prevent the two-wheeler electric vehicle from moving, upon detecting the external device (102) connection by the VCU (101);
enabling a direct current (DC) contactor (107) that allows transmission of energy to and from a battery pack (108) after the MCU (105) is disabled by the VCU (101);
discharging of energy from the battery pack (108) through the enabled DC contactor (107) upon receiving command from the VCU (101) by a battery management system (BMS) (109);
transmitting the discharged energy from the battery pack (108) to the external device (102) connected to the DC inlet (103) through the transmitting terminal (104).

2. The method as claimed in claim 1, wherein transmitting of the discharged energy is protected with a direct current protection (DCP) circuit (112) connected to the DC contactor (107).

3. The method as claimed in claim 1, wherein transmitting the discharged energy from the battery pack (108) to the external device (102) further includes transmitting the discharged energy from the external device (102) to an electrical appliance (110).

4. The method as claimed in claim 1, wherein transmitting the discharged energy from the battery pack (108) to the external device (102) further includes conversion of direct current to an alternating current by the external device (102) when the external device (102) is connected to AC electrical appliance.

5. The method as claimed in claim 1, wherein transmitting the discharged energy from the battery pack (108) to the external device (102) further includes conversion of direct current to another level of direct current by the external device (102) when the external device (102) is connected to DC electrical appliance.

6. The method as claimed in claim 1, wherein discharging of energy from the battery pack (108) through the enabled DC contactor (107) further comprises monitoring and disengaging discharge of energy upon detecting any fault by the BMS (109).

7. A system to provide controlled extraction of energy from two-wheeler electric vehicle, the system comprising of:
a key (111) provides an ignition powered to the two-wheeler electric vehicle which is detected by a vehicle control unit (VCU) (101);
an external device (102) is connected to a direct current (DC) inlet (103) through a transmitting terminal (104) which is detected by the VCU (101);
a motor control unit (MCU) (105) is disabled to prevent the two-wheeler electric vehicle from moving, upon detecting the external device (102) connection by the VCU (101);
a direct current (DC) contactor (107) is enabled that allows transmission of energy to and from a battery pack (108) after the MCU (105) is disabled by the VCU (101);
a battery management system (BMS) (109) discharges energy from the battery pack (108) through the enabled DC contactor (107) upon receiving command from the VCU (101), wherein the discharged energy is transmitted from the battery pack (108) to the external device (102) connected to the DC inlet (103) through the transmitting terminal (104).

8. The system as claimed in claim 7, wherein the transmitting terminal (104) is an electrical charging gun.