System and method for controlling a bicycle trainer
A system and method for controlling an exercise device are provided herein. The system includes a memory having computer-executable instructions and at least one processor to execute the computer-executable instructions to wirelessly connect the exercise device, receive a training mode, receive at least one variable for determining a power set point, determine the power set point responsive to the training mode and the at least one variable and control a magnetic brake assembly in the exercise device responsive to the power set point.
1. An exercise device, comprising:
a memory having computer-executable instructions; and
at least one processor to execute the computer-executable instructions to:
receive a first target value for a first variable and a second target value for a second variable, the first variable and the second variable for determining a power set point, the first target value for an individual and the second target value for a group of individuals where the group of individuals may be provided the same second target value;
receive a current value for the second variable;
determine the power set point responsive to a comparison of the current value and the second target value; and
control a magnetic brake assembly in the exercise device responsive to the power set point.
2. The exercise device of claim 1 further comprising:
a cycling training device including the magnetic brake assembly;
wherein the first target value is a power value, the second target value is a speed value;
the at least one processor to execute the computer-executable instructions further to:
measure a speed of a rider of the cycling training device, the speed being the current value;
determine a power that the rider is using to pedal the cycling training device based on the speed; and
adjust electromagnetic braking provided by the magnetic brake assembly based on the power set point, the power set point responsive to a difference between the current value and the second target value, and the power.
3. The exercise device of claim 2 wherein the power set point is determined by:
P erg =P t ·[1+0.1( v a −v t )]
where:
P erg is the power set point,
P t is the first target value, and wherein the first target value is a power value,
v a is the current value, wherein the current value is a speed measurement, and
v t is the second target value, and wherein the second target value is a speed value.
4. The exercise device of claim 2 wherein the power set point is determined by:
P erg =α·P t
where:
P erg is the power set point,
P t is the first target value, the first target value is a power value, and
a is a multiplier based on a magnitude and a direction of a difference between the second target value and the current value.
5. The exercise device of claim 1 wherein the computer-executable instructions to:
wirelessly connect the exercise device; and
receive a training mode.
6. The exercise device of claim 1 , the at least one processor to execute the computer-executable instructions further to:
receive an update to at least one of the first target value and the second target value via a wireless protocol; and
adjust the power set point responsive to the update of at least one of the first target value and the second target value.
7. The exercise device of claim 1 , wherein the memory comprises firmware for the exercise device.
8. A method, comprising:
receiving, by at least one processor, a first target value for a first variable and a second target value for a second variable, the first variable and the second variable for determining a power set point, the first target value for an individual and the second target value for a group of individuals where the group of individuals may receive the same second target value;
receiving a current value for the second variable;
determining, by the at least one processor, the power set point responsive to a comparison of the current value and the second target value; and
generating a signal to control a magnetic brake assembly in the exercise device responsive to the power set point.
9. The method of claim 8 wherein the first target value is a power value, the second target value is a speed value, the method further comprising:
receiving a speed of a rider of the exercise device, the speed being the current value; determining a power that the rider is using to pedal the exercise device based on the speed; and
adjusting an electromagnetic braking provided by the magnetic brake assembly based on the power set point, the power set point responsive to a difference between the current value and the second target value, and the power.
10. The method of claim 9 wherein the power set point is determined by:
P erg =P t ·[1+0.1( v a −v t )]
where:
P erg is the power set point,
P t is the first target value, and wherein the first target value is a power value,
v a is the current value, wherein the current value is a speed measurement, and
v t is the second target value, and wherein the second target value is a speed value.
11. The method of claim 9 wherein the power set point is determined by:
P erg =α·P t
where:
P erg is the power set point,
P t is the first target value, the first target value is a power value, and
a is a multiplier based on a magnitude and a direction of a difference between the second target value and the current value.
12. The method of claim 9 further comprising determining the power further based on a torque measurement.
13. The exercise device of claim 2 further comprising determined power further based on a torque measurement.
14. The method of claim 11 wherein a is one of a plurality of values, each value associated with a respective speed region bounded by a first offset from the second target value, the second target value being a speed target, and the respective speed region being bounded by a second offset from the speed target.
15. The exercise device of claim 4 wherein a is one of a plurality of values, each value associated with a respective speed region bounded by a first offset from the second target value, the second target value being a speed target, and the respective speed region being bounded by a second offset from the group speed target.
16. The exercise device of claim 1 wherein:
the first target value is a power value, the second target value is a speed value;
the at least one processor further to:
measure a speed of a rider of the exercise device, the speed being the current value;
determine a power that the rider is using to pedal the exercise device; and
adjust electromagnetic braking provided by the magnetic brake assembly based on the power set point, the power set point responsive to a difference between the current value and the second target value, and the power.
17. The method of claim 8 wherein:
the first target value is a power value, the second target value is a speed value, the method further comprising:
receiving a speed of a rider of the exercise device, the speed being the current value; and
determining a power that the rider is using to pedal the exercise device.