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The following table is a convenient reference on the circumference of 
several popular bicycle tire sizes. For highest accuracy, measure the 
actual  circumference  directly  with  a  tape  measure  or  similar 
technique.

The next three setup items only matter to Cycle Analysts that have 
been wired with the throttle over-ride signal connected to the motor 
controller. The Direct Plug-in models already have this appropriately 
connected,  but  the  Stand  Alone  and  High  Current  version  require 
additional wiring for these settings to have any effect. 

6.3

Speed Limit 

Set the maximum speed beyond which the motor controller will cease 
to provide useful output power. The Cycle Analyst will vary the throttle 
signal  such  that  the  vehicle  will  continue  to  cruise  at  this  set  point 
speed.

6.4

Volts Limit 

Program  the  low  voltage  rollback  point  for  your  battery  pack.  The 
Cycle Analyst will reduce power drawn from the controller in order to 
keep the battery voltage from dropping below this limit.

6.5

Max Amps 

Set the upper current limit. If the Cycle Analyst senses current above 
this value, it will scale down the throttle appropriately to reduce the 
amperage draw. 

 

Tire Size

Circumference

Tire Size

Circumference

16 x 1.50

1185

26 x 1.25

1953

16 x 1 3/8

1282

26 x 1-1/8

1970

20 x 1.75

1515

26 x 1-3/8

2068

20 x 1-3/8

1615

26 x 1-1/2

2100

24 x 1-1/8

1795

26 x 1.50

2010

24 x 1-1/4

1905

700c x 23

2097

24 x 1.75

1890

700c x 28

2136

24 x 2.00

1925

700c x 32

2155

24 x 2.125

1965

700c x 38

2180

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Summary of Contents for Cycle Analyst 2.25 CA-DP

Page 1: ...The Cycle Analyst User Manual Large Screen Edition...

Page 2: ...ologies Ltd 20 E 4th Ave Vancouver BC Canada V5T 1E8 ph 604 569 0902 email info ebikes ca web http www ebikes ca Author and Illustrator Justin Lemire Elmore Copyright 2011 1 The Cycle Analyst is desig...

Page 3: ...tion 5 4 Display Information 7 5 Additional Resetting Options 9 6 Setup Menu 10 7 Using the Limiting Features 12 8 Advanced Setup Menu 14 9 Using Advanced Features 18 10 Operation in Wet and Cold Cond...

Page 4: ...when more than 10V appears across the circuit and will turn off when this voltage is removed The default screen shows five pieces of information that are most relevant to the rider This includes thre...

Page 5: ...harged the battery pack you should reset the trip statistics Ah Distance and Time to clear them all to zero This is done by pressing and holding the right button for 1 second until the message Reset s...

Page 6: ...r controller 3 Installation The Cycle Analyst display box comes with a mounting bracket for installation on the handlebar of your bicycle This bracket can rotate in two axis to adjust the display posi...

Page 7: ...ntroller This is most conveniently done by attaching connectors on the shunt leads which match your battery connectors If you have a switch in the system it is best to wire the shunt after the switch...

Page 8: ...m or Wh mi The watt hours used per unit of distance travelled is a measure of the average energy efficiency of your vehicle With this figure you can readily quantify how different riding styles impact...

Page 9: ...awn from the battery Vmin The voltage of a battery pack will sag sometimes considerably when it is under heavy load Vmin is a local minimum measurement that shows by how much your pack s voltage droop...

Page 10: ...ssibilities 5 1 Peak Reset In some instances for diagnostic and performance testing it is desirable to clear only the peak statistics Amax Amin Vmin and Smax without resetting anything else This can b...

Page 11: ...r kilometers If you want to change the setting hold the right button until _OK appears on the screen Then pressing either button will toggle between mi or km and holding the right button again will sa...

Page 12: ...output power The Cycle Analyst will vary the throttle signal such that the vehicle will continue to cruise at this set point speed 6 4 Volts Limit Program the low voltage rollback point for your batte...

Page 13: ...limit A speed limit can help make any electric bicycle abide by the legal speed caps that exist in most jurisdictions while not affecting performance below that speed It can also be useful for extend...

Page 14: ...d regulation is computed as follows ITerm Previous ITerm IntSGain Set Speed Actual Speed Clamp ITermMin ITerm ITermMax Override ITerm PSGain Set Speed Actual Speed Similar values are calculated with t...

Page 15: ...us values difficult to read These values are averaged before display Short averaging times allow you to get a better real time feel for the power fluctuations while longer averaging times produce a st...

Page 16: ...dified boards will be closer to 70 V V 8 6 Set Poles For Direct Plug in units this should be set to the number of hall effect transitions per rotation of the wheel Crystalyte 400 series hubs have 8 th...

Page 17: ...to the voltage that is considered full throttle by the controller For hall effect throttles full power occurs at about 4V and limiting the ITerm to this value will speed up the response time of the li...

Page 18: ...efault OFF This allows you to set the function of the auxiliary input voltage line Pad Vi on the Cycle Analyst circuit board You can choose whether this line is ignored default or if it is used for on...

Page 19: ...32 8 9132 3 299 47 49 13 22 16 41 8 9175 3 302 47 43 13 45 17 30 8 9220 3 306 47 85 6 02 17 52 8 9268 3 308 49 36 1 43 17 17 8 9317 3 307 49 55 3 69 16 05 8 9365 The data is at 0 5V CMOS voltage level...

Page 20: ...ller rather than just limiting the power via a throttle over ride function The example below shows how to wire up a current throttle such that the regular throttle signal is intercepted by the Cycle A...

Page 21: ...oblem using the meter in light rain However in cases of prolonged exposure to wet conditions it is possible for moisture to enter the box though the back cover which is not sealed This can cause the w...

Page 22: ...de to pull down user s throttle V Positive lead to battery pack can be shared with other devices requiring battery power that draw less than 500mA red wire Advanced Connections G Ground Tx Serial data...

Page 23: ...istor the maximum current is 100 amps With a 0 5m resistor up to 400 amps and so forth Current Resolution 0 01A in low range mode 0 1A in high range mode Current Accuracy Temperature coefficient and a...

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