.. I took some time and browsed this thread to see if I could find some technical data on the
British Rail Class 810 'Aurora', bi-mode multiple unit being constructed by
Hitachi Rail for
East Midlands Railway (
EMR). That what I was familiar with so far is:
Legend:
D -driving cab;
P -pantograph;
T -trailer car;
M -motor car;
b -bogie;
c -car;
d -diesel engine;
e -electric motor;
DEMU -Diesel-Electric;
EMU -Electric;
BEMU -Battery;
HMU -Hybrid;
S -standard class;
C -composite (standard & first class);
F -first class
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Type:
BR Class 810 'Aurora' bi-mode multiple unit
Formation:
5-car /
2M3T:
DPTS(d) +
MS(d+e) +
TS +
MC(d+e) +
DPTF(d)
Wheel arrangement:
2-2 + Bo-Bo + 2-2 + Bo-Bo + 2-2
Electric system: 25 kV 50 Hz AC OHLE
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.. Since I haven't found the exact data on its traction motors (at least not any linked to an official source), I thougt this train's drivetrain system might have some in common with the
Hitachi 'Blues' train with tri-mode drive - Serial Hybrid drivetrain, derived from the Masaccio platform, intended for the regional traffic and made in two versions, i.e. with 3 cars -
HTR.312; wheel arrangement:
Bo-(2)(2)-Bo and 4 cars -
HTR.412; wheel arrangement:
Bo-(2)(2)(2)-Bo, on which the traction is ensured by 4 (four) 3-phase
Hitachi Copper Rotor IM rated at 375 kW / 503 hp / 510 PS.
The
Hitachi Blues train's
MTU Series 1600 Power Pack main machines are:
●
MTU 12V 1600 R91, 4-stroke, turbocharged, diesel engine (eng. architecture: 90°V 12-cylinder; eng. displacement: 21.042 ccm / 1.284,1 cu in * bore: 122,0 mm / 4,8 in, stroke: 150,0 mm / 5,9 in), CR: 17,5:1, rated at 736 kW / 987 hp / 1.001 PS at 1.900 rpm
●
Traktionssysteme Austria GmbH (
TSA)
TGE 59A-43-4 (736 kW / 987 hp / 1.001 PS at 1.900 rpm; 2.100 V; 214 A; 62,9 Hz), 3-phase traction alternator
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Type:
Hitachi 'Blues' HTR.412 tri-mode multiple unit
Formation:
4-car /
2M2T:
DM(d+e) +
PT +
T +
DM(d+e)
Wheel arrangement:
Bo-(2)(2)(2)-Bo
Electric system: 3 kV DC OHLE
Installed power: 2
c x 1
d x 736 kW + 2
c x 2
e (2
b x 2
e) x 375 kW
1.472 kW / 1.974 hp / 2.001 PS (
DEMU) + 1.500 kW / 2.012 hp / 2.039 PS (
EMU) + 890 kW / 1.194 hp / 1.210 PS (
BEMU)
* the sum of these powers:
DEMU,
EMU and
BEMU represents the total installed power, however the power that can be transferred (in the different modes) to the driving axles is limited by the power of the traction electric motors
………..
……………..…....................... Tri-mode drive - Serial Hybrid drivetrain
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..If the
BR Class 810 'Aurora' bi-mode multiple unit, by a chance, has the same (it might be derated) traction motors as
Hitachi 'Blues' tri-mode multiple units, then the installed power on
'Aurora' would be:
Installed power: 4
c x 1
d x 736 kW + 2
c x 4
e (4
b x 2
e) x 375 kW
2.944 kW / 3.948 hp / 4.003 PS (
DEMU) + 3.000 kW / 4.023 hp / 4.080 PS (
EMU)
..On the
Hitachi British Rail Class 802 bi-mode multiple unit on which the traction is ensured by 12 (twelve) / 20 (twenty) 3-phase
Hitachi Copper Rotor IM rated at 226 kW / 303 hp / 307 PS,
MTU Series 1600 Power Pack main machines are:
●
MTU 12V 1600 R80LP, 4-stroke, turbocharged, diesel engine (eng. architecture: 90°V 12-cylinder; eng. displacement: 21.042 ccm / 1.284,1 cu in * bore: 122,0 mm / 4,8 in, stroke: 150,0 mm / 5,9 in), CR: 17,5:1, rated at 700 kW / 939 hp / 952 PS at 1.900 rpm
●
Traktionssysteme Austria GmbH (
TSA)
TGE 59-43-4 (700 kW / 939 hp / 952 PS at 1.900 rpm; 1.950 V; 214 A; 62,7 Hz), 3-phase traction alternator
-------------------------------------------------------------------------------------------
Type:
GWR Class 802/0 bi-mode multiple unit
Formation:
5-car /
3M2T:
DPTS +
M(d+e)
S +
M(d+e)
S +
M(d+e)
C +
DPTF
Wheel arrangement:
2-2 + 3 x Bo-Bo + 2-2
Electric system: 25 kV 50 Hz AC overhead
Installed power: 3
c x 1
d x 700 kW + 3
c x 4
e (6
b x 2
e) x 226 kW
2.100 kW / 2.816 hp / 2.855 PS (
DEMU) + 2.712 kW / 3.637 hp / 3.687 PS (
EMU)
-------------------------------------------------------------------------------------------
Type:
GWR Class 802/1 bi-mode multiple unit
Formation:
9-car /
5M4T:
DPTS +
M(d+e)
S +
M(d+e)
S +
TS +
M(d+e)
S +
TS +
M(d+e)
S +
M(d+e)
F +
DPTF
Wheel arrangement:
2-2 + 2 x Bo-Bo + 2-2 + Bo-Bo + 2-2 + 2 x Bo-Bo + 2-2
Electric system: 25 kV 50 Hz AC overhead
Installed power: 5
c x 1
d x 700 kW + 5
c x 4
e (10
b x 2
e) x 226 kW
3.500 kW / 4.694 hp / 4.759 PS (
DEMU) + 4.520 kW / 6.061 hp / 6.145 PS (
EMU)
* the sum of these powers:
DEMU and
EMU represents the total installed power, however the power that can be transferred (in the different modes) to the driving axles is limited by the power of the traction electric motors
…………..
………………………… ...................... Bi-mode drivetrain
-------------------------------------------------------------------------------------------
..Under the
agreement from December 2020,
Hitachi Rail and
Eversholt Rail Ltd replaced one of the under-floor diesel engines on a
5-car
GWR Class 802/0 bi-mode train (
launched by GWR in August 2018) with a battery, creating a tri-mode hybrid train, expecting fuel savings of up to 20%. The train will be able to operate solely on battery power when entering and leaving the 15 non-electrified stations on the route, reducing pollution and noise. The battery will be able to recharge while operating under electrification, or within 10 to 15 minutes while static. In the meantime
Hitachi Rail and
Eversholt Rail Ltd have proceeded to the
advanced phases for designing and
engineering an electric-diesel-battery (tri-mode) train.
..Hitachi Rail will draw on its own expertise developed in Japan, as well as working with Sunderland-based
Hyperdrive Innovation Ltd (
Turntide Technologies), which
Hitachi Rail signed an agreement with in July 2020 to create and develop battery packs for mass production at
Hyperdrive’s
HYVE facility.
Hitachi Rail and
Eversholt Rail Ltd say projected improvements in battery technology, particularly in power output and charging, could allow more diesel engines to be replaced incrementally, with a fully electric-battery inter-city train capable of travelling the full 191 km / 119 mi between London and Penzance possible by the late 2040s …
..Kind regards
…….Mario