BATTERY MONITORING SYSTEM FOR A VEHICLE AND A METHOD THEREOF

• US 20180149681A1
• Filed: 01/24/2017
• Published: 05/31/2018
• Est. Priority Date: 11/29/2016
• Status: Active Grant

• Current Assignee: Wipro Limited
• Original Assignee: Wipro Limited
• Inventors: CHAKRABARTY, Rudranil
• Granted Patent: US 10,168,364 B2
• Time in Patent Office: Days
• CPC Class Codes: B60K 1/00 Arrangement or mounting of electrical propulsion units B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00; electric transmission arrangements B60K17/12; electric equipment or propulsion of electrically-propelled vehicles per se B60L; current-collectors for power supply lines of electrically-propelled vehicles B60L5/00
• CPC Class Codes: B60L 1/006 to power outlets
• CPC Class Codes: B60L 1/02 to electric heating circuits
• CPC Class Codes: B60L 1/14 to electric lighting circuits
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 58/10 for monitoring or controlling batteries
• CPC Class Codes: B60L 58/20 having different nominal voltages
• CPC Class Codes: B60R 16/03 for supply of electrical power to vehicle subsystems or for circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60R 16/033 characterised by the use of electrical cells or batteries for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: F02N 11/0866 comprising several power sources, e.g. battery and capacitor or two batteries
• CPC Class Codes: G01R 19/165 Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
• CPC Class Codes: G01R 31/3828 using current integration
• CPC Class Codes: H02J 2310/46 for ICE-powered road vehicles
• CPC Class Codes: H02J 9/002 in which a reserve is maintained in an energy source by disconnecting non-critical loads, e.g. maintaining a reserve of charge in a vehicle battery for starting an engine
• CPC Class Codes: H02J 9/06 with automatic change-over , e.g. UPS systems
• CPC Class Codes: H02J 9/061 for DC powered loads
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles

Abstract

The present disclosure discloses a battery source monitoring system for a vehicle. The system comprises at least one current sensor configured to detect current flow from one or more accessory devices connected to an auxiliary battery source. The control unit on detecting vehicle ignition OFF condition, is configured to determine ON condition of one or more accessory devices and switch power source of the one or more accessory devices in ON condition from primary battery source to auxiliary battery source. The control unit then compares current flow received from current sensor with a predetermined threshold. When current flow detected by current sensor surpasses predetermined threshold, the control unit disconnects one or more accessory devices from auxiliary battery source and primary battery source, and switch power source of one or more accessory devices from auxiliary battery source to the primary battery source, thereby monitoring battery source of vehicle.

Claims

1. A battery source monitoring system 100 for a vehicle, the system 100 comprising:

at least one current sensor 101 configured to detect current flow from one or more accessory devices 109 connected to an auxiliary battery source 111; and

a control unit 102, interfaced to a primary battery source 110, the auxiliary battery source 111, the at least one current sensor 101 and an ignition sensor 117, on detecting vehicle ignition OFF condition, is configured to;

determine ON condition of one or more accessory devices 109;

switch power source of the one or more accessory devices 109 in ON condition from the primary battery source 110 to the auxiliary battery source 111;

comparing the current flow received from the at least one current sensor 101 with a predetermined threshold; and

perform, when the current flow detected by the at least one current sensor 101 surpasses the predetermined threshold;

disconnect the one or more accessory devices 109 from the auxiliary battery source 111 and the primary battery source 110; and

switch power source of the one or more accessory devices 109 from the auxiliary battery source 111 to the primary battery source 110, thereby monitoring the battery source of the vehicle.

2. The system 100 as claimed in claim 1, wherein the at least one current sensor 101 is powered by the auxiliary battery source 111.

3. The system 100 as claimed in claim 1, wherein the one or more accessory devices 109 are powered by the primary battery source 110 at vehicle ignition ON condition.

4. The system 100 as claimed in claim 1 further comprising a user interface 107 to receive user preferences for deactivating the one or more accessory devices 109 during the vehicle ignition OFF condition.

5. The system 100 as claimed in claim 4, wherein the one or more de-activated accessory devices 109 are preferred by the user to be in OFF condition during vehicle ignition OFF condition.

6. The system 100 as claimed in claim 4, wherein the user interface 107 is configured to notify a user about the current flow to the one or more de-activated accessory devices 109 connected to the auxiliary battery source 111.

7. A method for monitoring a battery source of a vehicle, the method comprising:

determining, by a control unit 102, ON condition of one or more accessory devices 109;

switching, by the control unit 102, power source of the one or more accessory devices 109 in ON condition from the primary battery source 110 to the auxiliary battery source 111;

receiving, by the control unit 102, current flow through an auxiliary battery source 111 from at least one current sensor 101;

comparing, by the control unit 102, the current flow with a predetermined threshold; and

performing, by the control unit 102, when the current flow detected by the at least one current sensor 101 surpasses the predetermined threshold;

disconnecting the one or more accessory devices 101 from the auxiliary battery source 111 and the primary battery source 110; and

switching power source of the one or more accessory devices 101 from the auxiliary battery source 111 to the primary battery source 110, thereby monitoring the battery source of the vehicle.

8. The method as claimed in claim 7, wherein the at least one current sensor 101 is powered by the auxiliary power source 111.

9. The method as claimed in claim 7 further comprising receiving, by a user interface 107, user preferences for deactivating one or more accessory devices 109 during the vehicle ignition OFF condition.

10. The method as claimed in claim 9 further comprising powering the one or more de-activated accessory devices 109 by the primary battery source 110 at vehicle ignition ON condition.

11. The method as claimed in claim 9 further comprising providing a notification on the user interface 107 about the current flow to the one or more de-activated accessory devices 109 connected to the auxiliary battery source 111.

12. A control unit for monitoring a battery source of a vehicle, comprising:

a processing unit 105; and

a memory 106 communicatively coupled to the processing unit 105, wherein the memory 106 stores processor instructions, which, on execution, causes the processing unit 105 to;

determine ON condition of one or more accessory devices 109;

switch power source of the one or more accessory devices 109 in ON condition from the primary battery source 110 to the auxiliary battery source 111;

receive current flow through one or more accessory devices 109 connected to the auxiliary battery source 111 from at least one current sensor 101;

compare the current flow with a predetermined threshold; and

perform, when the current flow from the at least one current sensor 101 surpasses the predetermined threshold;

disconnect the one or more accessory devices 109 from the auxiliary battery source 111 and the primary battery source 110; and

switch power source of the one or more accessory devices 109 from the auxiliary battery source 111 to the primary battery source 110, thereby monitoring the battery source of the vehicle.

13. The control unit 102 as claimed in claim 12, wherein the one or more accessory devices 109 are powered by the primary battery source 110 at vehicle ignition ON condition.