BMW 3: Anticipatory hybrid drive
The anticipatory hybrid drive has been revised and enhanced with the G20 PHEV.
The driver can find
this function under "Anticipatory hybrid drive" in the vehicle literature and
the vehicle's integrated
owner's manual.
Here, with active route guidance by the navigation system the route is analyzed
and the operating
strategy adapted to the stretch of road. The navigation and traffic data of the
individual distances
permit a calculation of the power required to cover these distances.
Based on these power forecasts and the state of charge of the high-voltage
battery unit, a decision is
made on whether the combustion engine or the electric motor is used for this
distance. The aim is to
reserve the electrical energy for the destination zone, the urban environment
and further stretches in
which the vehicle is driven at a lower speed. If necessary, the high-voltage
battery unit must be actively
charged beforehand (load point increase) for this purpose.
Anticipatory hybrid drive
- Power forecast for the respective distance
- Distance travelled
- Use of the electric motor
- Use of the combustion engine
Anticipatory use of the electrical energy can reduce consumption and also
enhance the experience of
electric driving for the driver. The combustion engine is switched off where the
driver expects and also
senses it (at low speeds with a low noise level, e.g. in towns).
New features:
- Extension of the slow-driving zone
The classification of a slow-driving zone necessary for the function has
been extended
to entire towns. In this way, the electrical energy is reserved for electric
driving in urban
environments. Previously, only individual stretches were taken into account
with up to
approximately 18 mph (30 km/h).
- More intelligent distribution of electrical energy
Reserving the electrical energy for stretches in which the vehicle is driven
more slowly (e.g. for
top speed limitations, in traffic jams, construction sites) is now possible
in a number of driving
modes. Previously, this was only possible in the ECO PRO driving mode.
The following requirements must be fulfilled for the function of the
anticipatory hybrid drive:
- Route guidance activated in the navigation system
- HYBRID STANDARD, HYBRID ECO PRO or ADAPTIVE driving mode used.
The anticipatory hybrid drive is not available in the ELECTRIC driving mode
and when BATTERY
CONTROL is used. Anticipatory energy recovery is only possible on downhill
gradients in the SPORT
driving mode or the sport/manual position of the gear selector switch.
The following table once again provides a summary of the functionality depending
on the respective
driving mode.
The anticipatory hybrid drive appears in the energy flow display of the
Central Information Display.
A relevant note is displayed when a corresponding situation occurs or in the
course of preparation for
such a situation.
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Combined expansion and shutoff valve (interior)
Combined expansion and shutoff valve (high-voltage battery unit)
High-voltage battery unit
Refrig
Electric A/C compressor (EKK)
Signal connector
Low pressure line (gaseous refrigerant at low temperature and low
pressure)
High-voltage connector
High pressure line (gaseous refrigerant at hig
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Concept
The function displays the service requirements
and the corresponding maintenance scopes.
General information
After switching on drive-ready state, the instrument
cluster briefly displays available driving distance
or time to the next scheduled maintenance.
A service advisor can read out the