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[email protected] · December 6th 19, 03:07 PM posted to uk.railway,uk.transport.london

On Fri, 06 Dec 2019 15:53:11 +0000
Charles Ellson wrote:
On Fri, 6 Dec 2019 11:09:38 +0000 (UTC), wrote:

On Thu, 5 Dec 2019 15:57:21 -0000 (UTC)
Recliner wrote:
Yes, London buses consume a large subsidy, but it doesn't come from the
government. It's a cross-subsidy from the Tube. The much-hyped Boris buses
have made it worse, being almost twice as expensive as conventional hybrid
double-deckers, heavier on fuel, and with a fare evasion problem. London

Given even the normal hybrid buses I occasionally use only seem to switch
their diesel engines off when stopped (might as well just use a stop-start
system rather than lugging heavy batteries around)

A lot of new single-deckers have that.

Yes, I've noticed that. The system seems a bit too keen however, cutting out
the moment the bus stops which means in traffic the engine is constantly
stopping and starting. Even though its designed for this is still can't do
the emissions any favours and I bet they have to change the starters quite
often too.

Charles Ellson[_2_] · December 7th 19, 01:01 AM posted to uk.railway,uk.transport.london

On Fri, 6 Dec 2019 16:07:36 +0000 (UTC), wrote:

On Fri, 06 Dec 2019 15:53:11 +0000
Charles Ellson wrote:
On Fri, 6 Dec 2019 11:09:38 +0000 (UTC), wrote:

On Thu, 5 Dec 2019 15:57:21 -0000 (UTC)
Recliner wrote:
Yes, London buses consume a large subsidy, but it doesn't come from the
government. It's a cross-subsidy from the Tube. The much-hyped Boris buses
have made it worse, being almost twice as expensive as conventional hybrid
double-deckers, heavier on fuel, and with a fare evasion problem. London

Given even the normal hybrid buses I occasionally use only seem to switch
their diesel engines off when stopped (might as well just use a stop-start
system rather than lugging heavy batteries around)

A lot of new single-deckers have that.

Yes, I've noticed that. The system seems a bit too keen however, cutting out
the moment the bus stops which means in traffic the engine is constantly
stopping and starting.

Not IME with bus engines only stopping when the doors open but it
could vary by vehicle type.

Even though its designed for this is still can't do
the emissions any favours and I bet they have to change the starters quite
often too.

I did wonder if the usual type of starter motor engaging the flywheel
had been upgraded to something else to avoid the current pattern of
wear.

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