Wireless vehicle lift system with enhanced electronic controls

• US 10,214,403 B2
• Filed: 08/27/2018
• Issued: 02/26/2019
• Est. Priority Date: 03/19/2012
• Status: Active Grant

• Current Assignee: Gray Manufacturing Company Incorporated
• Original Assignee: Gray Manufacturing Company Incorporated
• Inventors: Jaipaul, Larry M., Fagan, John E., Sandmann, David Dwight, Keck, Jr., William R., Rucker, Stephen J., McKee, Ralph S.
• Primary Examiner(s): Salata, Anthony J
• Application Number:
  US16/113,894
• Publication Number:
  US 20190010037A1
• Time in Patent Office: 183 Days
• Field of Search: 187203, 187209, 187210, 187223, 187227, 187285, 187286, 187290, 187391-393, 187247
• CPC Class Codes: B66F 13/00 Common constructional features or accessories
• CPC Class Codes: B66F 3/46 Combinations of several jacks with means for interrelating lifting or lowering movements
• CPC Class Codes: B66F 5/00 Mobile jacks of the garage type mounted on wheels or rollers
• CPC Class Codes: B66F 7/02 with platforms suspended from ropes, cables, or chains or screws and movable along pillars
• CPC Class Codes: B66F 7/10 with platforms supported directly by jacks
• CPC Class Codes: B66F 7/28 Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
• CPC Class Codes: H04B 7/24 for communication between two or more posts wireless communication networks H04W

Abstract

Wireless portable vehicle lift system incorporating one or more enhanced communication and/or control features. The lift system can incorporate enhanced touch screen-enabled functionalities and/or enhanced wireless communication features.

Claims

1. A wireless portable vehicle lift system comprising:

a plurality of substantially identical individual lifts; and

a remote control configured to be removably attached to at least one of said individual lifts,

wherein, when said remote control is attached to said at least one of said individual lifts, wired communication is permitted between said remote control and said at least one of said individual lifts,

wherein each individual lift comprises—

a base for supporting said individual lift on a floor or the ground,

a post rigidly coupled to said base and extending upwardly from said base,

a carriage configured to engage a wheel of a vehicle,

a lifting actuator for vertically shifting said carriage relative to said post,

a height sensor,

a weight sensor,

a rechargeable battery,

a battery charger,

an e-stop button,

a user interface including a display screen and one or more function buttons,

an interface microprocessor configured to process information related to said user interface,

a primary circuit board comprising a control microprocessor,

a memory, and

a radio frequency transceiver,

wherein said control microprocessor and said interface microprocessor are configured to communicate with one another, perform distinct tasks, operate in parallel, and share said memory,

wherein said lift system is configured to perform coordinated lifting and lowering of said vehicle with no master or slave relationship between said individual lifts of said lift system.

2. The wireless portable vehicle lift system of claim 1, wherein each of said individual lifts is configured to track its own actions and the actions of all other individual lifts of said lift system to thereby provide collective intelligence that enables said coordinated lifting with no master or slave relationship between said individual lifts of said lift system.

3. The wireless portable vehicle lift system of claim 1, wherein said control microprocessor of each individual lift is configured to receive height information from all of said height sensors of said individual lifts of said lift system, wherein said control microprocessor of each individual lift uses said height information to enable said coordinated lifting with no master or slave relationship between said individual lifts of said lift system.

4. The wireless portable vehicle lift system of claim 1, wherein each of said individual lifts comprises a common data buffer, wherein said lift system is configured to continuously update and synchronize said common data buffers of said individual lifts with lift information concerning the status and operation all of said individual lifts of said lift system, wherein said lift information includes lift heights.

5. The wireless portable vehicle lift system of claim 1, wherein each of said individual lifts comprises a housing, wherein said primary circuit board and said radio frequency transceiver are mounted inside said housing for protection from the external environment, wherein said display screen and said e-stop button are mounted on said housing for access by the lift operator, wherein said radio frequency transceiver and said control microprocessor are mounted on said primary circuit board.

6. The wireless portable vehicle lift system of claim 1, wherein each of said individual lifts comprises a watchdog processor configured to reset said control microprocessor in the event of a failure of or locking of said control microprocessor.

7. The wireless portable vehicle lift system of claim 1, wherein said lift system comprises an adaptive communication system capable of wirelessly communicating on a plurality of different channels.

8. The wireless portable vehicle lift system of claim 1, wherein each of said individual lifts comprises a pawl and a stop, wherein engagement of said pawl with said stop prevents lowering of said individual lift.

9. The wireless portable vehicle lift system of claim 1, wherein each of said lifts is configured to track and/or store lift data relevant to safety, maintenance, and/or proper operation of said lift system, wherein each of said individual lifts is configured to provide a notification of maintenance needs based on said lift data.

10. The wireless portable vehicle lift system of claim 1, wherein said display screen is configured to display height information, weight information, and battery status information.

11. The wireless portable vehicle lift system of claim 1, wherein each of said individual lifts comprises a microcontroller, wherein said microcontroller comprises said control microprocessor.

12. The wireless portable vehicle lift system of claim 1, wherein said remote control is configured to communicate wirelessly with one or more of said individual lifts when said remote control is detached from said individual lifts.

13. The wireless portable vehicle lift system of claim 1, wherein said lifting actuator comprises a hydraulic cylinder.

14. A method of operating a wireless portable vehicle lift system, said method comprising:

(a) providing a plurality of substantially identical individual lifts with none of said individual lifts being a master lift or a slave lift, wherein each individual lift comprises a base, a post, a carriage, a rechargeable battery, a display screen, a display microprocessor, a control microprocessor, and a radio frequency transceiver, wherein said display microprocessor and said control microprocessor are configured to communicate with one another;

(b) positioning said carriages of at least two of said individual lifts into engagement with wheels of a vehicle;

(c) establishing a secure wireless communication link between at least two of said individual lifts to thereby form a lift ensemble of said individual lifts that wirelessly communicate with one another via an adaptive communication system, wherein said adaptive communication system is capable of operating on multiple channels; and

(d) lifting a vehicle with said lift ensemble by vertically shifting said carriages of said lifts of said lift ensemble in a coordinated manner, wherein during said lifting said individual lifts wirelessly share data with one another so as to coordinate said lifting using collective intelligence of said lift ensemble, wherein said establishing of step (c) includes—

(i) a lift operator powering up a first of said individual lifts,

(ii) said first lift determining a clearest communication channel,

(iii) said first lift wirelessly transmitting a beacon signal,

(iv) a lift operator powering up a second of said individual lifts,

(v) said second lift detecting said beacon signal and determining that said second lift is not the first of said individual lifts to be powered up,

(vi) said first and second lifts wireless exchanging lift identification information.

15. The method of operating a wireless portable vehicle lift system of claim 14, wherein said lifting of step (d) is initiated by an operator using a remote control that is removably attached to one of said individual lifts.

16. The method of operating a wireless portable vehicle lift system of claim 15, wherein said remote control communicates with said one of said individual lifts via a wired electrical connection between said remote control and said one of said individual lifts.

17. The method of operating a wireless portable vehicle lift system of claim 15, wherein said remote control is configured for wireless communication with at least one of said individual lifts.

18. The method of operating a wireless portable vehicle lift system of claim 14, further comprising, during said lifting of step (d), continually monitoring the height of each of said individual lifts in said lift ensemble and determining if the heights of said individual lifts are within a predetermined difference.

20. The method of operating a wireless portable vehicle lift system of claim 14, wherein said lift ensemble comprises at least four individual lifts, further comprising operating said lift ensemble in a paired mode where two of said individual lifts raise and lower in a coordinated manner while the other two of said individual lifts remain stationary.

21. The method of operating a wireless portable vehicle lift system of claim 14, wherein each of said individual lifts comprises a housing, a primary circuit board, and an e-stop switch, wherein said primary circuit board is mounted inside said housing for protection from the external environment, wherein said display screen and said e-stop switch are mounted on said housing for access by the lift operator, wherein said radio frequency transceiver and said control microprocessor are mounted on said primary circuit board, wherein each of said individual lift comprises an interface system including said display screen, said display microprocessor, and a plurality of function buttons, wherein said interface system is configured to communicate with said main circuit board via a wired connection.

19. A method of operating a wireless portable vehicle lift system, said method comprising:

(a) providing a plurality of substantially identical individual lifts with none of said individual lifts being a master lift or a slave lift, wherein each individual lift comprises a base, a post, a carriage, a rechargeable battery, a display screen, a display microprocessor, a control microprocessor, and a radio frequency transceiver, wherein said display microprocessor and said control microprocessor are configured to communicate with one another;

(b) positioning said carriages of at least two of said individual lifts into engagement with wheels of a vehicle;

(c) establishing a secure wireless communication link between at least two of said individual lifts to thereby form a lift ensemble of said individual lifts that wirelessly communicate with one another via an adaptive communication system, wherein said adaptive communication system is capable of operating on multiple channels; and

(d) lifting a vehicle with said lift ensemble by vertically shifting said carriages of said lifts of said lift ensemble in a coordinated manner, wherein during said lifting said individual lifts wirelessly share data with one another so as to coordinate said lifting using collective intelligence of said lift ensemble,

wherein each of said individual lifts comprises a lifting actuator and a plurality of lift sensors, wherein said control microprocessor is configured to process information relating to said lifting actuator and said lift sensors, wherein said lifting actuator is configured to vertically shift said carriage relative to said post, wherein said lift sensors are configured to provide information about individual components of said individual lift, wherein said lift sensors include a height sensor and a weight sensor, wherein said height sensor is configured to provide information about the position of said carriage, wherein said weight sensor is configured to provide information about the weight supported by said carriage.

22. A method of operating a wireless portable vehicle lift system, said method comprising:

(a) providing a plurality of substantially identical individual lifts with none of said individual lifts being a master lift or a slave lift, wherein each individual lift comprises a base, a post, a carriage, a rechargeable battery, a display screen, a display microprocessor, a control microprocessor, and a radio frequency transceiver, wherein said display microprocessor and said control microprocessor are configured to communicate with one another;

(b) positioning said carriages of at least two of said individual lifts into engagement with wheels of a vehicle;

(c) establishing a secure wireless communication link between at least two of said individual lifts to thereby form a lift ensemble of said individual lifts that wirelessly communicate with one another via an adaptive communication system, wherein said adaptive communication system is capable of operating on multiple channels; and

(d) lifting a vehicle with said lift ensemble by vertically shifting said carriages of said lifts of said lift ensemble in a coordinated manner, wherein during said lifting said individual lifts wirelessly share data with one another so as to coordinate said lifting using collective intelligence of said lift ensemble,

wherein said display microprocessor and said control microprocessor share a common area of memory, wherein each of said individual lifts comprise a COP watchdog configured to reset said control microprocessor in the event of a failure of or locking of said control microprocessor.

23. The method of operating a wireless portable vehicle lift system of claim 22, wherein said COP watchdog is a processor separate from said control microprocessor.