- Les systèmes Brushless -


        III - Systeme Brushless

              
2 - Systemes Brushless avec capteur

Actuellement, de nombreux fabricants proposent des systèmes Brushless pour les voitures RC. Concernant les systèmes avec capteurs, le nombre de fabricants est plus limité. Les systèmes à capteur/sonde sont autorisés dans certains pays depuis plusieurs mois et le seront dans d'autres lors des mois à venir. La réglementation nomme quelques fabricants tels que LRP-Reedy, NOSRAM et TEAM NOVAK pour les plus connus.

                       

 Neanmoins, d'autres fabricants, tel Schulze, propose des variateurs compatibles avec les moteurs à capteur.

   

Concentrons-nous sur les systèmes Brushless "légaux". Comme mentionné, LRP-Reedy, NOSRAM et TEAM NOVAK sont les principaux fabricants de ces systèmes. Le variateur et le moteur fonctionnent en couple, les fabricants ayant développés leurs moteurs en adéquation avec leurs variateurs. Le nombre de variateur est limité et quelques moteurs fonctionnent avec chaque variateur.

Voici quelques variateurs (tous les modèles ne sont pas listés)

GM Racing
GM-Genius 95 SET button:
Numerous supplementary functions can also be programmed simply using the GMVIS Commander, PC RS232 interface or SET button:
Rotational speed limit (brushless motors only)
Timing: 0°, 7,5°, 15° or 30° (brushless motors only)
Soft-start
Current limiting
Current rise function at full-throttle
Brake minimum
Brake maximum
Start-up current limiting
Automatic brake
Frequency mode
Power curve (soft, linear, hard)
Automatic throttle
Full brake
Maximum reverse speed
Switched functions
ABS brake function

Mode:
Mode 1: Electric-powered model gliders, all models (forward with EMF brake), factory default setting
Mode 2: All models without brake and without reverse function (power model aircraft, model boats)
Mode 3: Model helicopters with speed regulation (governor moode)
Mode 4: Models with brake and reverse function (model car, model boat)

Specification
Operating voltage range 7.2 ... 14.8V (19.2V*)
Cell count, Ni-Cd, Ni-MH 6 to 12 (16*)
Cell count, Li-Po, Li-Io 2 to 4 (5*)
Cont. current (brushless motors) 70 A
Maximum motor current (10 sec.) 140 A
Temperature cut-off approx. 120° C
EMF brake programmable
Reverse function programmable
Soft-start programmable
Low-voltage power-down yes
Power-on pulse suppression yes
Pulse frequency 8 kHz
BEC receiver power supply approx. 5.5 V / 4 A peak
Max. BEC dissipated power at 20° C 2.5 W
OPTO optional
Dimensions excl. capacitors approx. 50 x 27 x 15 mm
Dimensions incl. capacitors. approx. 70 x 27 x 15 mm
Weight excl. cables approx. 33 g
Weight incl. cables approx. 70 g
Replacement for Order No. 94133
* with opto-coupler, Order No. 2894.3, and when using a four-cell receiver battery

 

GM-Genius 80

SET button:
Numerous supplementary functions can also be programmed simply using the GMVIS Commander, PC RS232 interface or SET button:
Rotational speed limit (brushless motors only)
Timing: 0°, 7,5°, 15° or 30° (brushless motors only)
Soft-start
Current limiting
Current rise function at full-throttle
Brake minimum
Brake maximum
Start-up current limiting
Automatic brake
Frequency mode
Power curve (soft, linear, hard)
Automatic throttle
Full brake
Maximum reverse speed
Switched functions
ABS brake function

Mode:
Mode 1: Electric-powered model gliders, all models (forward with EMF brake), factory default setting
Mode 2: All models without brake and without reverse function (power model aircraft, model boats)
Mode 3: Model helicopters with speed regulation (governor mode)
Mode 4: Models with brake and reverse function (model car, model boat)

Specification
Operating voltage range 7.2 ... 12V
Cell count, Ni-Cd, Ni-MH 6 to 10
Cell count, Li-Po, Li-Io 2
Cont. current (brushless motors) 80 A
Maximum motor current (10 sec.) 160 A
empf. Motor: brushless 5.5 T
Temperature cut-off approx. 120° C
EMF brake programmable
Reverse function programmable
Soft-start programmable
Low-voltage power-down yes
Power-on pulse suppression yes
Pulse frequency 8 kHz
BEC receiver power supply approx. 5.8 V / 4 A peak
Max. BEC dissipated power at 20° C 2,5 W
OPTO optional
Dimensions excl. capacitors approx. 48 x 31.5 x 15 mm
Dimensions incl. capacitors. approx. optional
Weight excl. cables approx. 50 g
Weight incl. cables approx. 90 g
* with opto-coupler, Order No. 2894.3, and when using a four-cell receiver battery

 

LRP
Sphere
Brushless & Brushed Yes
Forward / brake Yes
Forward / brake / reverse Yes
Brushless system sensored
Protection system 3-way
Footprint (mm) 33.3 x 37.7
4 adjustable Modes Mode 1: Brushed/Brushless and Forward/Brake/Reverse or Forward/Brake selection.
Mode 2: Punch Control, with three engine maps: Sportsman, for brushless operation limited to 24, 000 RPM, Low Grip, using LRP’s intelligent current limiting system, and Modified, for unlimited RPM and linear throttle operation.
Mode 3: Initial Brake with four levels:
 - Linear
 - Smooth
 - Medium
 - Aggressive.
Allows the driver to adjust the feel of his brakes.
Mode 4: Automatic Brake, adjustable in four levels:
 - No auto-brake
 - Smooth auto-braking
 - Medium auto-braking
 - Aggressive auto-braking.
This feature is especially important when using brushless motors, as it enables you to closely simulate the feel of driving a conventional brushed motor (with its inherent “drag” brake action) when coasting in neutral.

 

 
NOSRAM
Matrix Evolution
Brushless & Brushed Yes, AUTOMATIC Adaptation
Forward / brake Yes
Forward / brake / reverse -
Typical voltage drop brushless* @20A* 0.018V
Rated current brushless* 400A / phase
Rec. motor limit brushless** Over 3.5 turns
Typical voltage drop brushed* @20A* 0.013V
Rated current brushed* 400A / phase
Rec. motor limit brushed** Over 5 turns
Brushless system sensored
Voltage input 4-7cells (4.8-8.4V)
4 adjustable Modes  - NiMH/LiPo
 - X.P.S.2 Power profiles
 - Iinitial brake
 - Automatic brake
Drive frequency high
B.E.C. 5.5V/3.0A
Protection system 3-way
Dimensions 33.1 x 37.6 x 14.9mm
Eeight (ecl. wires) 24.5g
Connectors 13awg power wires
*Transistors rating at 25°C junction temperature. Specifications subject to change without notice. **@6cell (7.2V)
Matrix
Brushless & Brushed Yes
Forward / brake Yes
Forward / brake / reverse Yes
Typical voltage drop brushless* @20A* 0.035V
Rated current brushless* 200A / phase
Rec. motor limit brushless** Over 5.5 turns
Typical voltage drop brushed* @20A* 0.026V
Rated current brushed* 200A / phase
Rec. motor limit brushed** Over 7 turns
Brushless system sensored
Voltage input 4-7cells (4.8-8.4V)
4 adjustable Modes

 - Brushless/brushed
 - Punch control
 - Initial brake
 - Automatic brake

Drive frequency high
B.E.C. 5.5V
Protection system 3-way
Dimensions 33.1 x 37.6 x 14.9mm
Eeight (ecl. wires) 24.5g
Connector

Standard tamiya style /13awg power wire set

*Transistors rating at 25°C junction temperature. Specifications subject to change without notice. **@6cell (7.2V)
TEAM NOVAK
GTB
Input Voltage  4-6 cells (1.2V/cell)
Footprint ("/mm) 1.16 x 1.49 / 29.5 x 37.8
Weight  1.36 / 38.5
Motor Limit None (Compatible with all Novak 540-size brushless motors)
On-Resistance:  0.00040 ohms (per each phase -3) 0.00013 ohms (brushed mode)
Throttle Profiles: 5 brushless (2w/rev), 1 brushed
brushless programmable   5 throttle profiles
(3 forward/brake; 2 w/reverse)
BEC: Heavy-duty 6V/3A  
4 Adjustable Parameters in all profiles Minimum Brake
Drag Brake
Deadband
Minimum Drive
Fully programmable racing brushed mode including adjustable Drive Frequency
User-friendly programming interface with 4 different color status LEDs
Gold-Plated PCB Direct-Solder Wiring Tabs
User-replaceable input harness and switch harness
Thermal Overload Protection
Radio-Priority Circuitry
Polar Drive Circuitry
Clear cooling fan (30x30x8mm) mounted on factory-installed heat sink
Factory-installed power capacitor module
Water-resistant case

 

 

Crawler System

Input Voltage  4-6 cells (1.2V/cell)
Footprint ("/mm) 1.32x1.75 / 33.5x44.5
Weight (oz/grs)  1.7 / 48.2 (wo power wires
On-Resistance:  0.0019 ohms (per each phase -3)
BEC: Heavy-duty 6V/3A
4 Adjustable Parameters in all profiles Minimum Brake
Drag Brake
Deadband
Minimum Drive
2 Driving Profiles:
Profile 1: Normal motor rotation;
Profile 2: Reverse motor rotation
Expanded drag brake values for improved holding power during maneuvering
Small Dead Band (3%) for finer throttle control
Fits in popular 1/10 scale electric R/C cars
Variable Throttle Step
One-Touch Set-Up
Transmitter Check Mode
Locked Rotor Detection Circuitry
Direct-solder wiring tabs for flexible soldering options
User-replaceable input harness
Thermal Overload Protection

De même, différents moteurs sont disponibles pour un même type de variateur:

GM Racing
EVO 2 BLACK 3.5T IFMAR SPEC *

EVO2 BLACK 4,5T IFMAR SPEC *

EVO2 BLACK 5,5T IFMAR SPEC

EVO 2 BLACK 6.5T IFMAR SPEC

EVO 2 BLACK 7.5T IFMAR SPEC

EVO 2 BLACK 10.5T IFMAR SPEC

General Specification
Nominal voltage : 7.2 V
Operating voltage range : 4.8 ... 7.2 V
Permissible motor directions : Fw and Bw
No. of poles : 2
Overall length in 70 mm
Case length excl. shaft : 52.5 mm
Diameter approx. in 35.8 mm
Free shaft length approx. 15
Shaft diameter : 3.17
Weight approx. 180 g
Recommended controller : GM-GENIUS 80
* Recommended controller : GM-GENIUS 95

Specification Evo2 Black 4,5T
No-load speed approx. 60,000
Revs / Volt : 8000
No. of winds : 4.5
Current drain at maximum efficiency : 48 A
Maximum efficiency : 90%
Maximum power at 7.2V : 273 W
Typical applications : 1:10 model cars
Gearbox reduction ratio :
TC 1:7 - 1:9
Off-Road 1:11 - 1:14

Specification Evo2 Black 5,5T
No-load speed approx. 49,000
Revs / Volt : 6500
No. of winds : 5.5
Current drain at maximum efficiency : 45 A
Maximum efficiency : 90%
Maximum power at 7.2V : 268 W
Gearbox reduction ratio :
TC 1:6 - 1:8
Off-Road 1:10 - 1:13

 

Efficiency comparison table for GM Racing Product:

Brushless

corresponds to

 Brushed

3.5T <6T
4.5T  6-8T
5.5T    9-10T
6.5T 11-12T
7.5T 13-16T
10.5T 17-27T

 

EVO 2 5,5T

EVO 2 6T

EVO 2 7,5T

EVO 2 10T

General Specification
Nominal voltage : 7.2 V
Operating voltage range : 4.8 ... 7.2 V
Permissible motor directions : Fw and Bw
No. of poles : 2
Overall length in 68 mm
Case length excl. shaft : 51 mm
Diameter approx. in 35.8 mm
Free shaft length approx. 15
Shaft diameter : 3.17
Weight approx. 175 g
Typical applications : 1:10 model cars
Recommended controller : GM-GENIUS 80

Specification Evo 2 5,5T
No-load speed approx. 38,000
Revs / Volt : 5066
No. of winds : 5.5
Current drain at maximum efficiency : 48 A
Maximum efficiency : 88%
Maximum power at 7.2V : 275 W
Gearbox reduction ratio :
TC 1:4.5 - 1:7
Off-Road 1:8 - 1:11

Specification Evo 2 6T
Nominal voltage : 7.2 V
Operating voltage range : 4.8 ... 7.2 V
No-load speed approx. 36,000
Revs / Volt : 4800
No. of winds : 6
Current drain at maximum efficiency : 45 A
Maximum efficiency : 88%
Maximum power at 7.2V : 270 W
Gearbox reduction ratio :
TC 1:4.0 - 1:7
Off-Road 1:7.5 - 1:10.5

Specification Evo 2 7,5T
Nominal voltage : 7.2 V
Operating voltage range : 4.8 ... 8.4 V
No-load speed approx. 29,000
Revs / Volt : 3866
No. of winds : 7.5
Current drain at maximum efficiency : 40 A
Maximum efficiency : 89%
Maximum power at 7.2V : 250 W
Gearbox reduction ratio :
TC 1:3.5 - 1:7
Off-Road 1:7 - 1:10

Specification Evo 2 10T
No-load speed approx. 23,000
Revs / Volt : 3066
No. of winds : 10
Current drain at maximum efficiency : 35 A
Maximum efficiency : 90%
Maximum power at 7.2V : 220 W
Gearbox reduction ratio :
TC 1:3.0 - 1:7
Off-Road 1:6 - 1:10

 

NOSRAM

Storm

 
  RPM* Kv (RPM) Power* (W) Efficiency
1 Star 43.920 6.100 220 93%
2 Star 49.680 6.900 242 92%
3 Star 55.440 7.700 263 92%
4 Star 61.200 8.500 283 91%

* measured at 7.2V

TEAM NOVAK

Crawler_Motor

Turns: 18 1/2
Design: Sensor-based
Motor Size ("/mm): 2.08L x1.41D /52.8x35.8
Shaft Diameter: 0.125”; 3.2
Motor Weight: 6.73 oz. (191 grams)

HV6.5

Number of Turns: 6.5
Design: Sensor-based
Input Voltage: up to 14 cells (1.2V/cell)
Motor Size: 2.84”; 72.1 mm (Length); 1.41”; 35.8 mm (Diameter)
Shaft Diameter: 0.125”; 3.2 mm; (accepts all existing pinion gears)
Motor Weight: 8.36 oz. (295 grams)
Power Output: 375 watts @ 14.4 volts
Magnet: One-piece, multi-pole neodymium
Performance: Approx. 20% longer run-times

4.5 Racing

5.5 Racing

6.5 Racing

7.5 Racing

4.5R ideal for competition touring cars. 
5.5R ideal for Touring Car and high-traction off-road applications.
6.5R ideal for Off-Road and low-traction applications and faster than 7.5R.
7.5R ideal for Off-Road and low-traction applications

 
Turns: 4 1/2 - 5 1/2 - 5 1/2 - 7 1/2
Design: Sensor-based
Motor Size: 2.08” L X 1.41” D (52.8 x 35.8 mm)
Shaft Diameter: 0.125” (3.2 mm)
Motor Weight:

6.61oz. (187 grams) - 4.5R

6.73oz. (191 grams) - 5.5R/6.5R/7.5R

Magnet: One-piece, multi-pole cylindrical high-strength Neodymium

    
4.5 Racing 5.5, 6.5 & 7.5 Racing

SS5800 (8 1/2-turn)

SS4300 (10 1/2-turn)

Size (mm - ") 52.8 x 35.8 - 2.08 x 1.41
Weight (Gr - Oz) 191 - 6.73
SS 4300 4300 RPM/Volt
SS 5800 5800 RPM/Volt

SS13 1/2

Lap performance similar to a 27-turn racing stock brushed motor

 

Turns: 13.5
Design: Sensor-based
Motor Size ("/mm): 2.08L x 1.41D /52.8 x 35.8
Shaft Diameter ("/mm): 0.125 / 3.2
Motor Weight (oz/grs): 6.4 /181
Magnet: One-piece, multi-pole cylindrical high-strength neodymium

Reedy

NEO-One

 
NEO-One 1 Star Brushless Motor, 13 turns.
NEO-One 2 Star Brushless Motor, 11 turns.
NEO-One 4 Star Brushless Motor, 7 turns.

Tableaux comparatifs entre divers association moteur-variateur