T7 Hybrid 4Motion Road trip - van vs Porsche

P

Peter Chequers

Messages
28
Location
Buckinghamshire
Vehicle
T7 California Ocean 4 Motion
Yesterday was day one of road trip to Devon and Cornwall

Group size 12 cars including two 911s, a Cayman, fast Audis, Golf R and an Alpine

To the amusement of the group I decided at the last minute to bring the T7 as it's first proper trip having only done a few local trips from new

Very impressed with its driving dynamics, comfort, noise levels and the VW travel assist ACC

The main take away from the day was managing the high voltage battery so the vehicle has its full power (245hp) available for the roads where the faster cars are "pressing on"

Without some proactive management the hybrid system will "waste" the precious EV power on the roads where the 1.5 petrol engine would be adequate

Obviously this trip was not the scenario that the vehicle was designed for!

Leg 1 was High Wycombe to Haynes Motor Musuem and I let the car do its own thing ...which meant well before the destination the EV battery was close to zero %

Two hours plugged in to the charger at the museum and with about 66% charge in the EV battery I decided to try something different for leg 2 to Barnstaple via Cheddar Gorge

I found that by manually overriding the hybrid system to keep the current charge when I set off it was possible to retain battery power for the roads where more acceleration was desirable ... However this requires going into the mode menu and turning off the manual setting in the hybrid system and then selecting sport on the gear position switch.

The downside of this is the impact on fuel economy when just using the 1.5 petrol engine

The software seems to be clever enough to work out when the regeneration has put a bit more charge in above the minimum level that has been manually specified that it can use the EV power in certain circumstances. But it can only do this if you have going downhill or braking a lot.

It got me thinking about what you would need to do on a skiing trip so that the precious EV battery was available to provide power the the rear wheels when arriving at the snow line in the climb up to a ski resort.

Day 2 is Lands End in the rain ... Just going to plug into a 150 kWh fast charger while having breakfast so I have a full EV battery to use today.


IMG_6997.jpeg
 
Nice experiment. I would not know what you would exactly have to do in case of the ski trip, but I’m pretty sure that you would be the only one actually arriving compared to the other cars

Ps. I drive a T5 Cali FWD and a Porsche 718 Cayman
 
Excellent, a bunch of yuppies ragging it round the country lanes. And a 3 tonne van saving electric so they can get all that power down to keep up when ‘pressing on’. At least you’ll be able to see the horse riders over the Cornish hedges, I’m sure you’ll be very welcome.
 
Yesterday was day one of road trip to Devon and Cornwall

Group size 12 cars including two 911s, a Cayman, fast Audis, Golf R and an Alpine

To the amusement of the group I decided at the last minute to bring the T7 as it's first proper trip having only done a few local trips from new

Very impressed with its driving dynamics, comfort, noise levels and the VW travel assist ACC

The main take away from the day was managing the high voltage battery so the vehicle has its full power (245hp) available for the roads where the faster cars are "pressing on"

Without some proactive management the hybrid system will "waste" the precious EV power on the roads where the 1.5 petrol engine would be adequate

Obviously this trip was not the scenario that the vehicle was designed for!

Leg 1 was High Wycombe to Haynes Motor Musuem and I let the car do its own thing ...which meant well before the destination the EV battery was close to zero %

Two hours plugged in to the charger at the museum and with about 66% charge in the EV battery I decided to try something different for leg 2 to Barnstaple via Cheddar Gorge

I found that by manually overriding the hybrid system to keep the current charge when I set off it was possible to retain battery power for the roads where more acceleration was desirable ... However this requires going into the mode menu and turning off the manual setting in the hybrid system and then selecting sport on the gear position switch.

The downside of this is the impact on fuel economy when just using the 1.5 petrol engine

The software seems to be clever enough to work out when the regeneration has put a bit more charge in above the minimum level that has been manually specified that it can use the EV power in certain circumstances. But it can only do this if you have going downhill or braking a lot.

It got me thinking about what you would need to do on a skiing trip so that the precious EV battery was available to provide power the the rear wheels when arriving at the snow line in the climb up to a ski resort.

Day 2 is Lands End in the rain ... Just going to plug into a 150 kWh fast charger while having breakfast so I have a full EV battery to use today.


View attachment 140720
I would suggest a little reading regarding how the 4 Motion system is used and controlled on the eHybrid vehicle.
You will not be without 4 wheel drive when it is required.


The VW Multivan eHybrid 4MOTION is a
plug-in hybrid all-wheel-drive system featuring a 1.5-litre TSI petrol engine combined with an 85kW front electric motor and a 100kW rear electric motor. The system offers purely electric driving up to 95km, enhanced by the electric rear motor for traction in various conditions, with automatic power distribution for maximum efficiency and control in the van and camper van segment.
Key Components & Operation

  • Three Drive Worlds: The system combines electric driving, long-distance hybrid suitability, and maximum traction.
  • Electric Motors: An 85kW electric motor is integrated into the front axle's 6-speed dual-clutch gearbox, and a 100kW electric motor is positioned on the rear axle.
  • Engine & Transmission: A 1.5-litre turbocharged TSI petrol engine works with these motors.
  • Battery: A 19.7 kWh battery is used for the electric range, supporting 11kW AC and 50kW DC charging.
  • All-Wheel Drive: The system places one electric motor on each axle, providing all-wheel-drive capability.
  • Dynamic Control: Power distribution between the axles is managed electronically, allowing up to 100% of the drive force to be sent to either axle as needed.
  • Disengagement Clutch: A decoupling unit can automatically disconnect the rear electric motor to conserve energy under normal traction conditions.
Features & Benefits

  • Electric Range: The plug-in hybrid system provides a zero-emission range of up to 95 kilometers.
  • Hybrid Power: It enables long journeys and covers short trips purely on electric power.
  • All-Weather Traction: The system provides enhanced traction and control in various conditions.
  • Electric Stationary Climate Control: Standard equipment includes electric stationary heating, cooling, and ventilation, even when the vehicle is stationary or charging.
  • Energy Management: The front motor can act as a generator, powered by the TSI engine, to charge the battery and supply the rear axle motor even when the main battery is depleted.

1758357779085.png

1758357779128.png

1758357779180.png
 
Excellent, a bunch of yuppies ragging it round the country lanes. And a 3 tonne van saving electric so they can get all that power down to keep up when ‘pressing on’. At least you’ll be able to see the horse riders over the Cornish hedges, I’m sure you’ll be very welcome.

So if you worked your arse off to be able to drive a fast car like a Porsche you are a yuppie? Well I guess that’s one way to look at it.

If the van is actually able to keep up when the others are “pressing on”, it means they are not pressing on, trust me…
 
I would suggest a little reading regarding how the 4 Motion system is used and controlled on the eHybrid vehicle.
You will not be without 4 wheel drive when it is required.


The VW Multivan eHybrid 4MOTION is a
plug-in hybrid all-wheel-drive system featuring a 1.5-litre TSI petrol engine combined with an 85kW front electric motor and a 100kW rear electric motor. The system offers purely electric driving up to 95km, enhanced by the electric rear motor for traction in various conditions, with automatic power distribution for maximum efficiency and control in the van and camper van segment.
Key Components & Operation

  • Three Drive Worlds: The system combines electric driving, long-distance hybrid suitability, and maximum traction.
  • Electric Motors: An 85kW electric motor is integrated into the front axle's 6-speed dual-clutch gearbox, and a 100kW electric motor is positioned on the rear axle.
  • Engine & Transmission: A 1.5-litre turbocharged TSI petrol engine works with these motors.
  • Battery: A 19.7 kWh battery is used for the electric range, supporting 11kW AC and 50kW DC charging.
  • All-Wheel Drive: The system places one electric motor on each axle, providing all-wheel-drive capability.
  • Dynamic Control: Power distribution between the axles is managed electronically, allowing up to 100% of the drive force to be sent to either axle as needed.
  • Disengagement Clutch: A decoupling unit can automatically disconnect the rear electric motor to conserve energy under normal traction conditions.
Features & Benefits

  • Electric Range: The plug-in hybrid system provides a zero-emission range of up to 95 kilometers.
  • Hybrid Power: It enables long journeys and covers short trips purely on electric power.
  • All-Weather Traction: The system provides enhanced traction and control in various conditions.
  • Electric Stationary Climate Control: Standard equipment includes electric stationary heating, cooling, and ventilation, even when the vehicle is stationary or charging.
  • Energy Management: The front motor can act as a generator, powered by the TSI engine, to charge the battery and supply the rear axle motor even when the main battery is depleted.

View attachment 140722

View attachment 140723

View attachment 140724
Yup, 4 motion always available regardless of high voltage battery range i.e. even if it says zero.
Same for moving off in 1st gear as that's electric also.
 
Yup, 4 motion always available regardless of high voltage battery range i.e. even if it says zero.
Same for moving off in 1st gear as that's electric also.
There is a reserve always kept available in the hybrid battery, despite the displayed %
 

4 Motion
"The electric rear-wheel drive is also available when the battery is empty: the power required for the electric drive motor on the rear axle is then automatically generated by the TSI engine and the front electric motor, which in this case acts as a generator."

that's from the press release link. So that's 4 motion on tap whenever it is required regardless of high voltage battery range.

I had read something similar for moving off in 1st gear but its not in that article and a brief search didn't locate it so far. Not so critical anyway I guess compared to confirmation about the 4 motion with zero EV range.
 
sorry first reply above was posted by accident and hence incomplete, post above clarifies this with official link to press release
 
Back
Top