Dynamic power control of torque in motor

Patent metadata

Field	Value
Publication number	US-12178361-B2
Application number	US-201917298331-A
Country	US
Kind code	B2
Filing date	Dec 4, 2019
Priority date	Dec 4, 2018
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A motor for a blender may include an armature and a coil. The coil and armature operatively receive power from a power source. The blender may include a controller and a memory. The memory may store instructions that, when executed by the controller, cause the controller to dynamically alter an output current to the motor. The instructions adjust the output current supplied to the motor at a given speed to reduce torque of the motor to match a preferred torque versus speed profile.

First claim

What is claimed is:

1. A blender system, comprising:
a blender base;
a brushless motor disposed within the blender base; and
a controller and a memory storing instructions that, when executed by the controller to apply a transfer function to a speed of the motor to determine an upper limit of torque associated with the motor, cause the controller to determine an output signal to be applied to the motor based on the speed of the motor and the determined upper limit of torque associated with the speed of the motor.

2. The blender system of claim 1 , wherein the output signal controls a current to be applied to the motor.

3. The blender system of claim 2 , wherein the blender base is operatively attached to a blade assembly.

4. The blender system of claim 1 , wherein the memory stores the instructions as firmware.

5. The blender system of claim 1 , wherein the controller determines parameters of the output signal based on an algorithm defining a speed versus torque curve.

6. The blender system of claim 5 , wherein the controller operatively monitors the speed of the motor and determines the parameters of the output signal based on the monitored speed and the speed versus torque curve.

7. The blender system of claim 1 , wherein the controller operatively receives a wireless signal identifying the operating parameters.

8. The blender system of claim 7 , wherein the controller operatively adjusts the torque of the motor based upon a container identification associated with the operating parameters.

Assignees

• Vita Mix Man Corp

Inventors

• Tareen Saifur
• Kolar David

Classifications

• H02P23/00

  Arrangements or methods for the control of AC motors characterised by a control method other than vector control · CPC title

• H02K7/14

  Structural association with mechanical loads, e.g. with hand-held machine tools or fans (with fan or impeller for cooling the machine H02K9/06) · CPC title

• A47J43/046 Primary

  with tools driven from the bottom side · CPC title

• A47J36/32

  Time-controlled igniting mechanisms or alarm devices · CPC title

• A47J43/085

  for machines with tools driven from the lower side (A47J43/087, A47J43/09 take precedence) · CPC title