DPS6 Powershift Transmission
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Transcript of DPS6 Powershift Transmission
DPS6 Powershift TransmissionDPS6 Powershift Transmission
Game Changing Technology for Fuel Economy
Game Changing TechnologyGame Changing Technology
DPS6
FUEL ECONOMY / CO2
PERFORMANCE
CONNECTED FEEL
PROVIDES TORQUE TO THE WHEELS 100% OF
THE TIME
The segment exclusive 6-speed DPS6 Transmission and Powershift Technology will provide a competitive advantage through superior mechanical efficiency and performance improvement.
8-10% fuel economy improvement vs. traditional 4 speed automatic
DPS6 Transmission Torque range up to 250 Nm
6 gears – total span 5.6
Covers B and C platforms
4 shaft design
Dual clutch system – with Dry Clutch (like M/T)
Compact ~350 – 380mm long, 183mm ctr. distance
Light weight - only 73 kg
Electromechanical shift actuation system
Electromechanical clutch actuation system
MAM – onboard TCM
Mechanical park system
Electronic range selection.
No external fluid connections
Improved fuel economy
Very high mechanical efficiency vs hydraulic A/Ts.
Eliminates the need for hydraulic controls
No torque converter, no oil pump… no parasitic losses.
Low viscosity transmission oil
6 speed wide ratio span (5.58) allows the engine to run at optimal operating speed for both city and highway.
Powertrain control innovations to maximize efficiency
Maintenance Free
Fill for life trans oil - No dipstick checking required
Dual clutch is designed to last for 10 years / 150k miles
Cooler lines are eliminated, no oil leaks
DPS6 – Key BenefitsDPS6 – Key Benefits
Powershift vs 6 speed A/T
Efficiency comparison
Gearbox Input Speed (rpm)
Gearb
ox
Input
Torq
ue L
oss
(Nm
)
30002600240022002000180016001000
14
12
10
8
6
4
2
0
6F35DPS6
Transaxle
6F35 and DPS6 Gearbox Input Torque Loss for Top GearGearbox Input Torque = 60Nm and PumpLoss is Included in 6F35
EPA_Highway CycleSpeed Range for
DPS6 Dual Clutch System
Ford Controls and Software Development Engineers have developed novel control strategies to maximize customer satisfaction with the Powershift transmission:
• Neutral Idle – the clutches will disengage when the brakes are applied. This function Increases fuel economy, improves coasting downshifts and improves clutch robustness.
• Precise Clutch Control – Micro Slip for NVH ImprovementsProvides torsional damping through clutch slip. Improves NVH at low engine speeds and enables lower lugging limit for improved fuel economy.
• Torque Hole Filling – Provides smooth torque transfer during up shifts through precise coordination of engine torque delivery during the shift.
• Tip In/Back Out Logic – All new algorithms developed to provide smooth torque transitions to handle rapid changes of driver pedal input.
Transmission Controls InnovationsTransmission Controls Innovations
• Slow Speed Driving (Creep) w/ Integrated Brake Pressure – Provides typical creep function that drivers expect out of an automatic transmission (torque as a function of brake pressure). Provides customer comfort and control for low speed/parking lot drivability.
• Hill Mode – Launch Assist – Integration of the brake control function with the transmission strategy to provide improved drivability on hills. Brakes will hold brake pressure until the engine delivers enough torque to move the car up the hill. This feature prevents vehicle roll back on a grade. This provides improved driving confidence/comfort/safety while also providing clutch robustness.
• Ford Grade Assist – Implementation of Ford Grade Assist algorithm for improved driveability/control on hilly terrain. Driver selectable function through button on shifter.
Transmission Controls InnovationsTransmission Controls Innovations
- All NEW, segment exclusive DCT technology.– Enables Fiesta to achieve outstanding fuel
economy.– Provides the connected feel of a manual
transmission, while also providing smooth gear shifts and the convenience of conventional automatic transmission.
– Delivers new functionality to the customer through the use of electro-mechanical control systems and Ford developed controls innovations.
DPS6 Transmission – key pointsDPS6 Transmission – key points