On Fri, 28 Feb 2020 12:34:17 +0000
Recliner wrote:
On Fri, 28 Feb 2020 11:45:41 +0000 (UTC), wrote:

On Fri, 28 Feb 2020 11:33:07 +0000
David Cantrell wrote:
On Thu, Feb 27, 2020 at 10:25:30PM -0000, Recliner wrote:
wrote:
Has anybody noticed how the electric and hybrid busses, particularly the

newer ones, cause motion sickness?
I don't think it's all of them, but some new models do seem to lurch.
That's probably a sign of the immaturity of some drivetrains, rather than
anything intrinsic.

I've not noticed this on buses, perhaps it's only some models on some
routes. But at any rate, it doesn't happen in hybrid cars so you woulda
thunk it was a Solved Problem.

Probably more likely to be the drivers - a lot of london bus drivers seem to
only use 2 throttle positions , zero and maximum. Ditto the brake.

Yes, but the same drivers also drove the previous non-lurching diesel
buses. Some of the new hybrid buses seem to have more sensitive
throttles.

It may be because electric motors have more starting torque. For
example, even quite humble city BEVs have very good acceleration from
zero to about 20mph.

New Routemasters aside (which seem to be generally hopeless in many respects)
I've found that the hybrid buses do take off from a stand much quicker than
a diesel only bus so the electric motor is certainly helping there. I've yet
to travel on a pure battery bus however so can't comment on them.

wrote:
On Fri, 28 Feb 2020 12:34:17 +0000
Recliner wrote:
On Fri, 28 Feb 2020 11:45:41 +0000 (UTC), wrote:

On Fri, 28 Feb 2020 11:33:07 +0000
David Cantrell wrote:
On Thu, Feb 27, 2020 at 10:25:30PM -0000, Recliner wrote:
wrote:
Has anybody noticed how the electric and hybrid busses, particularly the

newer ones, cause motion sickness?
I don't think it's all of them, but some new models do seem to lurch.
That's probably a sign of the immaturity of some drivetrains, rather than
anything intrinsic.

I've not noticed this on buses, perhaps it's only some models on some
routes. But at any rate, it doesn't happen in hybrid cars so you woulda
thunk it was a Solved Problem.

Probably more likely to be the drivers - a lot of london bus drivers seem to
only use 2 throttle positions , zero and maximum. Ditto the brake.

Yes, but the same drivers also drove the previous non-lurching diesel
buses. Some of the new hybrid buses seem to have more sensitive
throttles.

It may be because electric motors have more starting torque. For
example, even quite humble city BEVs have very good acceleration from
zero to about 20mph.

New Routemasters aside (which seem to be generally hopeless in many respects)
I've found that the hybrid buses do take off from a stand much quicker than
a diesel only bus so the electric motor is certainly helping there. I've yet
to travel on a pure battery bus however so can't comment on them.


I've been on battery and hydrogen fuel cell buses and didn't notice any
particular lurchiness.

In message , at 16:59:49 on Fri, 28 Feb
2020, remarked:

I've yet to travel on a pure battery bus however so can't comment on
them.

I have, and the ride was OK, but the driver confided it ran out of power
halfway through the afternoon, having limped its way around the final
hour.
--
Roland Perry

On 27/02/2020 22:25, Recliner wrote:

That'll be very low on the priority list after purchase costs, fuel costs,
maintenance, emissions, reliability, ease of driving and longevity.


And making a strange groaning noise that can be heard from some distance
to keep the guide dog charity happy.

(I was the other side of Wapping Green the other night and could hear
the bus coming from some way down Wapping Lane)

On Fri, 28 Feb 2020 18:44:34 +0000
Roland Perry wrote:
In message , at 16:59:49 on Fri, 28 Feb
2020, remarked:

I've yet to travel on a pure battery bus however so can't comment on
them.

I have, and the ride was OK, but the driver confided it ran out of power
halfway through the afternoon, having limped its way around the final
hour.

Induction charging or some kind of overhead pickup at bus stops would
certainly help there but whether TfL or any other bus operator would swallow
the cost without government assistance is another matter.