IP Library Granted Patent US 11,245,280
Granted Patent B2
US 11,245,280 · App. 16/545,118 · Granted Feb 8, 2022

Vehicle battery jump starter powered by a removable and rechargeable battery pack

Inventors: James Wekwert (Wauwatosa, WI); Gareth Mueckl (Milwaukee, WI); Randolph McHugh (Sullivan, WI)
Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
H02J7/342B60L53/80H02J7/0078
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Quick Facts
Patent No.
US 11,245,280
App. No.
16/545,118
Granted
Feb 8, 2022
Kind
B2
Abstract

A vehicle battery jump starter that is powered by a removable and rechargeable battery pack, such as a battery pack used with various hand-held power tools. The battery pack removably connects to a vehicle battery jump starter and can be selectively used to charge a power boost module within the vehicle battery jump starter. The power boost module includes, for example, a plurality of supercapacitors or lithium polymer battery cells. The power boost module in combination with the battery pack 100 can be used to jump start a vehicle battery.

Claims (56)

1. A vehicle battery jump starter comprising:

a first controller including a first electronic processor;

a battery pack interface configured to receive a removable and rechargeable battery pack, the battery pack including a second controller including a second electronic processor;

a power boost module including one or more energy storage devices;

a first electrical cable and a second electrical cable electrically connectable to the power boost circuit;

a first terminal clamp connected to the first electrical cable; and

a second terminal clamp connected to the second electrical cable,

wherein the power boost module is configured to be charged through the battery pack interface with a discharge current from the removable and rechargeable battery pack,

wherein at least one of the first controller and the second controller is configured to adjust an operating parameter of the battery pack when the battery pack is attached to the battery pack interface.

2. The vehicle battery jump starter of claim 1 , further comprising:

a precharge circuit configured to control a charging current provided to the power boost module.

3. The vehicle battery jump starter of claim 2 , further comprising:

a jump start switch configured to control a discharge current from the power boost module.

4. The vehicle battery jump starter of claim 3 , further comprising a current sensor configured to sense a discharge current from the vehicle battery jump starter.

5. The vehicle battery jump starter of claim 1 , wherein the operating parameter is a voltage threshold; and

wherein the at least one of the first controller and the second controller is configured to prevent operation of the battery pack when a voltage of the battery pack is less than the voltage threshold.

6. The vehicle battery jump starter of claim 1 , wherein the one or more energy storage devices include at least one selected from the group including one or more supercapacitors and one or more lithium polymer battery cells.

7. The vehicle battery jump starter of claim 1 , wherein the battery pack interface includes:

a support portion configured to receive and support the removable and rechargeable battery pack; and

a plurality of terminals configured to electrically connect the battery pack to the vehicle battery jump starter.

8. A vehicle battery jump starter system comprising:

a controller including an electronic processor;

a removable and rechargeable battery pack; and

a vehicle battery jump starter including:

a battery pack interface configured to receive the removable and rechargeable battery pack,

a power boost module including one or more energy storage devices,

a first electrical cable and a second electrical cable electrically connectable to the power boost module,

a first terminal clamp connected to the first electrical cable, and

a second terminal clamp connected to the second electrical cable,

wherein the power boost module is configured to be charged through the battery pack interface with a discharge current from the removable and rechargeable battery pack;

wherein the controller is configured to adjust an operating parameter of the battery pack when the battery pack is attached to the battery pack interface.

9. The system of claim 8 , wherein the vehicle battery jump starter includes a precharge circuit configured to control a charging current provided to the power boost module.

10. The system of claim 9 , wherein the vehicle battery jump starter includes a jump start switch configured to control a discharge current from the power boost module.

11. The system of claim 8 , wherein the operating parameter is a voltage threshold; and

wherein the controller is configured to prevent operation of the battery pack when a voltage of the battery pack is less than the voltage threshold.

12. The system of claim 8 , wherein the battery pack interface includes:

a support portion configured to receive and support the removable and rechargeable battery pack; and

a plurality of terminals configured to electrically connect the removable and rechargeable battery pack to the vehicle battery jump starter.

13. The system of claim 8 , wherein the removable and rechargeable battery pack is connected in parallel with the power boost module.

14. The system of claim 13 , wherein the removable and rechargeable battery pack is a power tool battery pack.

15. The system of claim 14 , wherein the removable and rechargeable battery pack has a nominal voltage of at least 12V.

16. The system of claim 15 , wherein the removable and rechargeable battery pack has a lithium-based chemistry.

17. A method of jump starting a battery of a vehicle, the method comprising:

attaching a removable and rechargeable battery pack to a vehicle battery jump starter, the vehicle battery jump starter including a power boost module, the power boost module including one or more energy storage devices within a housing of the vehicle battery jump starter;

adjusting, by a controller including an electronic processor, an operating parameter of the removable and rechargeable battery pack when the removable and rechargeable battery pack is attached to the vehicle battery jump starter;

electrically connecting the removable and rechargeable battery pack to the power boost module;

charging the power boost module with a discharge current from the removable and rechargeable battery pack;

connecting the vehicle battery jump starter to a vehicle battery; and

electrically connecting the removable and rechargeable battery pack and the power boost module to the battery to jump start the battery.

18. The method of claim 17 , further comprising:

monitoring a voltage of the battery; and

determine when the vehicle has started based on the monitored voltage.

19. The method of claim 18 , further comprising:

electrically disconnecting the removable and rechargeable battery pack and the power boost module from the battery after the vehicle has started.

20. The method of claim 17 , further comprising:

electrically disconnecting the removable and rechargeable battery pack from the power boost module when the power boost module has been charged.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 21, 2020
From: WEKWERT, JAMES; MUECKL, GARETH; MCHUGH, RANDOLPH
To: MILWAUKEE ELECTRIC TOOL CORPORATION
Reel/Frame 051886/0271 →
Continuity (2)
Provisional Application 62720438 · Aug 21, 2018
Related Publication 20200067333A1 · Feb 27, 2020
Cited By (2)
US 12,228,101 US 12,512,692