Two Speed
Two Speed
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IEdrives’ EV3 series of heavy duty transmission is specifically designed for use with electric motors that power medium and heavy duty trucks and buses. This transmission family is fully controllable with a 12 or 24 VDC shift signal, allowing for smooth upshift or downshifts. The EV3 series utilizes planetary gear sets to provide the highest efficiency and extreme service durability required by commercial trucks and buses. |
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Pneumatic shift 2 speed |
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| Rear output – numerous spline types or Yoke Flange options | Female splined input shaft allows for great design flexibility and compact motor/transmission integration |
EV3 – 2 speed
Description:
IEdrives’ EV3 series of heavy duty transmission is specifically designed for use with electric motors that power medium and heavy duty trucks and buses. This transmission family is fully controllable with a 12 or 24 VDC shift signal, allowing for smooth upshift or downshifts. The EV3 series utilizes planetary gear sets to provide the highest efficiency and extreme service durability required by commercial trucks and buses.
Recommended reduction ratios:
1st = 3.0:1*, 2nd= 1:1
* Other ratios available – contact IEdrives for support
** Integrated fixed reductions available (1.1:1 to 5:1)
Dimensions
Case Length 10.5 in 267 mm
Case Diameter 11.0 in 279 mm
Dry Weight 80 lb 36.2 kg
Performance
Rated Input Torque 1800 ft-lb 2440 N-m
Rated Input RPM 10,000 rpm
Overall Efficiency Greater than 95% full range
Energy Recovery Full regeneration capability
Lubrication
Method Splash - Unpressurized
Fluid type ATF
Cooling Loop Components available
Options: OP100 – oil pump
Continuous duty rated, hot oil recirculation pump.
5 amps max at 12 VDC.
Shifter Options
Electro-Pneumatic Servo
Power source: Vehicle Air Brake System
Pressure range: 80-130 psig (5.5-9.0 bar)
Consumption rate: 6.3 in3/shift 104 cm3/shift
Electrical requirements: 12 VDC 24 VDC option
Consumption rate: 1st gear hold – zero (0) watts
2nd gear hold – 10 watts
Electric Servo Under Development
Power source: 12 or 24 VDC target
Current 15 amps to shift
0 amps to hold
Input Shaft Options
IEdrives can provide an adaptor to match any motor output to IEdrives transmission input. For splined motor shaft diameters of 1.5 inch (40 mm) or less, IEdrives can offer direct coupling of motor output shaft to the female IEdrives input spline. Contact IEdrives for more information.
Bell Housing or Mounting Plate
IEdrives provides design and fabrication of bell housing or mounting plate as necessary.
Bell housing – motor to transmission mounting
A bell housing is required when an input shaft adaptor connects motor shaft to transmission. Adds 3-4 inches to total installed length depending upon motor shaft length
Adaptor plate – motor to transmission mounting
A simple adaptor plate can be used when direct motor to transmission connection is possible. Adds less than 1 inch to the motor/transmission length.
Output Shaft Options
IEdrives can provide nearly any common automotive driveshaft spline as a no cost “off-the-shelf” option. For all others, IEdrives can match the spline. IEdrives can also provide adaptors and matching Flange Yokes to accept U-joints 1480, 1550, or 1610. These compact adaptors allow standard bolt on driveshaft attachments to any of IEdrives’ transmissions.
Alternative, customer specified, terminations can be provided.
Example 1 - 3,500lb 4x4 Jeep Drive Train
Example 2 - 40,000lb City Bus Drive Train