ELEVATOR SYSTEM WITH POWER STORAGE DEVICE
First Claim
1. An elevator system, comprising:
- an elevator car and a counterweight operable to be translated within a hoistway;
a load bearing flexible member extending between the elevator car and the counterweight;
a motor having a drive, which motor is operable to move the load bearing member and thereby drive the elevator car and counterweight within the hoistway, and wherein the elevator motor and drive are configured to selectively produce regenerative power; and
an elevator control system that includes a power manager unit and a power storage device, wherein the power storage device includes a supercapacitor unit and a battery unit, and wherein the power manager unit is operable to selectively manage a flow of power between the power storage device and the motor drive, and a flow of regenerative power from the motor drive to the power storage device;
wherein the power manager unit is further operable to selectively manage power flow between the supercapacitor unit and the battery unit.
1 Assignment
0 Petitions
Accused Products
Abstract
An elevator system is provided that includes an elevator car (12), a counterweight (18), a load bearing flexible member, a motor have a drive, and an elevator control system (22). The car and counterweight are operable to be translated within a hoistway. The load bearing flexible member extends between the elevator car and the counterweight. The motor is operable to move the load bearing member and thereby drive the elevator car and counterweight within the hoistway. The elevator motor and drive are configured to selectively produce regenerative power. The elevator control system includes a power manager unit (24) and a power storage device (26). The power storage device includes a supercapacitor unit (32) and a battery unit (34). The power manager unit is operable to selectively manage the flow of power between the power storage device and the motor drive, and the flow of regenerative power from the motor drive to the power storage device (26).
-
Citations
21 Claims
-
1. An elevator system, comprising:
-
an elevator car and a counterweight operable to be translated within a hoistway; a load bearing flexible member extending between the elevator car and the counterweight; a motor having a drive, which motor is operable to move the load bearing member and thereby drive the elevator car and counterweight within the hoistway, and wherein the elevator motor and drive are configured to selectively produce regenerative power; and an elevator control system that includes a power manager unit and a power storage device, wherein the power storage device includes a supercapacitor unit and a battery unit, and wherein the power manager unit is operable to selectively manage a flow of power between the power storage device and the motor drive, and a flow of regenerative power from the motor drive to the power storage device; wherein the power manager unit is further operable to selectively manage power flow between the supercapacitor unit and the battery unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A control system for an elevator system, which elevator system includes an elevator car and counterweight operable to be translated within a hoistway, a load bearing flexible member extending between the elevator car and counterweight, and a motor having a drive, wherein the elevator motor and drive are configured to selectively produce regenerative power, and the motor is engaged with the load bearing flexible member to move the elevator car and counterweight within the hoistway, the control system comprising:
-
a power storage device including a supercapacitor unit and a battery unit; and a power manager unit operable to selectively manage a flow of power between the power storage device and the motor drive, and a flow of regenerative power from the motor drive to the power storage device; the power manager further operable to selectively manage power flow between the supercapacitor unit and the battery unit. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification