Cummins Gearing Recommendations

2015 On-Highway US and

Canada Products

3.31.2015

Cummins EBU Marketing/Technical Sales

Mario Sanchez-Lara

What matters?

Vehicle Mission

Understanding the customer’s

equipment and duty cycle

Gearing: Transmission and Axle

Electronic Engine Features and

Parameters

Vehicle Power Consumption

Everything Matters:

Aerodynamic Drag

Rolling Resistance

Vehicle Accessories and

Mechanical Losses

Grade Resistance

Driveline Efficiency

3

Application Guidelines Terminology

Startability

– The maximum grade (%) on which a vehicle could accelerate from rest

during an idle away (closed throttle) start

Peak Torque Gradeability

– The maximum grade that a vehicle could ascend while operating at 100

% throttle in top gear at peak torque rpm

Cruise Gradeability

– The maximum grade that a vehicle could ascend at a specified cruise

speed while operating in top gear at 100 % throttle

Application Guidelines and Minimum Performance Recommendations

* Certain applications may allow for cruise speed below minimum RSG Speed (i.e. Smart Advantage)

*

mph

Guidance for New Equipment

Replacement Equipment

– Existing equipment should dictate “Minimum Performance Requirements”

– If tradeoffs are expected, provide customer with adequate explanation and

obtain their buy-in

Driveability (Driver Satisfaction)

• Startability

• Torque Peak Gradeability

• Cruise Gradeability

Total Cost of Ownership (Owner Satisfaction)

• Operational Efficiency and Fuel Economy

• Maintenance

Cummins Gearing Criteria

2013 / GHG 2014 Certified Engines:

– Max Fuel Economy:

• Aim to maintain the engine operating in a low rpms range,

producing adequate power to accomplish the job in an efficient

manner, This favors fuel economy over some performance

characteristics (i.e. increase in shifting).

– Balance:

• Aim to operate the engine in a rpm range where horsepower is

increasing while peak torque is readily available. This is a good

compromise for customers seeking decent fuel economy with

solid performance characteristics.

– Performance

• Aim to operate the engine in a rpm range where peak power is

readily available. This favors productivity over operating costs.

New Integrated Powertrain

– SmartAdvantage

ISX Family 1 400-475hp Gearing

Once the optimal engine is determined, the right

gearing will enable the vehicle to meet the

customer’s needs and objectives.

Gearing Gauge / Criteria:

– Max Fuel Economy

– Balance

– Performance

• ISX15 450 hp, 1650 lb-ft torque rating

Fuel Economy Impact

NAAC:

– On average 1% improvement for line-haul

applications

– Up to 2% improvement in regional hauling with

stop and go routes

“Boosted” configuration

– Suitable for applications requiring enhanced Air

Compressor performance

Naturally Aspirated Air Compressor: Installation & Performance Preferred option for 2013 ISX15 400-450 hp engines

– Line-haul and Regional-haul applications

Simple hardware update:

– Plumbing only change

– Unique option number

Performance trade-off

– More time (vs. Boosted) to target operating pressure

• 40-60 seconds longer to achieve 145 psi (worst case scenario)

– Meets standard FMVSS-121

• 25 seconds to build pressure from 85 to 100 psi

ISX15 Family 1 400-475hp Gearing

1160-1240 RPM

– SmartAdvantage Integrated Powertrain

• VAM / ST2

1250-1425 RPM

– Extreme line haul / Regional haul - LTL

• Manual transmissions / lower gross weights

1500-1650 RPM

– Performance / Heavy haul

1600-1750 RPM

– Vocational / Off road

SmartAdvantageLinehaul : Up to 80,000 lbs GCVW

12Insert Data Classification

RPM

Linehaul: Up to 85,000 lbs GCVW

13Insert Data Classification

400-475 HP

• For ISX15 with less than 1550 lb-ft of torque:

• Maximum fuel economy is 1400-1500

• Balance is 1500-1600 rpm

RPM

Heavy Haul: 86,000 and 140,000 lbs GCVW

14Insert Data Classification

400-475 HP

RPM

These ratings provide value for customers

who need power and torque

– Heavy loads

– Mountainous terrain and/or steep grades

– Tight route cycle times

Use these ratings where power and torque are

needed. Do not focus on fuel economy gearing

Gearing Gauge / Criteria:

– Balance

– Performance

– Fuel Economy

ISX15 Family 2 and 3 455-600hp Gearing

• ISX15 525 hp, 1850 lb-ft torque rating

ISX15 Family 2 and 3 Gearing

1350- 1400 RPM

– Owner Operator wanting higher average

road speeds

1400 to 1550 RPM

– Premium fleets / Higher gross weights

1550-1800 RPM

– Heavy Haul / Off road or Vocational

Do not focus on fuel economy gearing,

Do not “Downspeed”

17Insert Data Classification

Linehaul: Up to 110,000 lbs GCVW

485-600 HP

RPM

18Insert Data Classification

VocationalHeavy Haul:86,000 and 140,000 lbs GCVW

485-600 HP

RPM

ISX12 310 – 425hp Gearing

1370 RPM for Linehaul fleets

– High % of interstate operation (85% to 95%)

– Want maximum fuel economy

– Lighter loads (62K to 70K)

1400 to 1450 RPM for Regional / LTL fleets

– Supports two lane / Rural operation

– Good mix of fuel economy and performance

1500 to 1900 RPM for Vocational / Heavy Haul

– Soft surface operation

– Performance for high GVW

Linehaul: Up to 85,000 lbs GCVW

20Insert Data Classification

310-425 HP

RPM

Vocational Ratings

21Insert Data Classification

320-450 HP

RPM

Applications

Two sets of gearing guidelines for the ISL9 are based on the available peak torque

Regional Haul

– Suburban Delivery

Vocational

– Pick up and Delivery

– Dump Truck

– Refuse Truck

– Concrete Mixer

Up to 66,000 lbs

Vocational and Linehaul: Up to 66,000 lbs GCVW

23Insert Data Classification

330-380 HP

RPM

Linehaul: Up to 66,000 lbs GCVW

24Insert Data Classification

260-300 HP

RPM

Applications

Two sets of gearing guidelines in Linehaul applications are

based on available peak torque and GCW

Vocational Applications

– Utility

– Step Vans

– Pick up and Delivery

Regional Haul

– Suburban Delivery

– Beverage Distribution

Up to 50,000 lbs

Pickup and Delivery: Up to 33,000 lbs GCVW

26Insert Data Classification

200-325 HP

RPM

27Insert Data Classification

Pickup and Delivery: Up to 50,000 lbs GCVW

200-325 HP

RPM

Vocational Ratings

28Insert Data Classification

200-325 HP

RPM

Spec’ing Natural Gas

Powertrains

2

9

Natural Gas

30Insert Data Classification

Heavy Duty Engine

Up to 80,000 Lbs GCVW

Great for mixer, dump truck, refuse,

regional-haul and LTL applications

31

Applications

400 HP Gearing

32

UltraShift PLUS

Eaton approved package

For Linehaul Active Shifting (LAS) and Multipurpose High Performance (MHP)

transmission models

Linehaul and Regional Haul only

33

Linehaul: Up to 80,000 lbs GCVW

34

320-400 HP

RPM

35Insert Data Classification

Vocational Ratings: Up to 80,000 lbs GCVW

320-350 HP

RPM

Applications

MidRange Engine

Pickup and Delivery Truck

Vocational

Up to *66,000 lbs GCVW

Less than 60,000 miles

per year

*Refuse Packer ,Crane / Cherry Pickers, Concrete Ready Mixer allow up to 80,000 GVW

320 HP Gearing

37

38Insert Data Classification

Linehaul : Up to 66,000 lbs GCVW

250-300 HP

RPM

39Insert Data Classification

Vocational Ratings : Up to 66,000 lbs GCVW

250-320 HP

RPM