Posted by Bill on May 21, 2006, 5:02 pm
> wrote:
>> Where I live, if there is a stop light at a highway intersection
>> there is a flashing light some distance before the intersection
>> warning a driver that the light is about to turn red. With a little
>> experience one can accurately determine when to start coasting.
> What about city or suburban traffic? Regardless, around here there are
> no such warnings--and for most of the semi-rural roads here, there are
> stop signs rather than traffic lights. I know when to start coasting
> for them, but often there's traffic behind me, and I can't coast as
> long/far as I would want because of that.
>> While the light is red I'm regenerating, arriving at the intersection
>> just as the cars there are pulling away on green.
> Quite often, I'll be at a stop light for two or three cycles--and stop
> signs, which are almost all four-way these days, is stop-go-stop-go,
> etc., until one gets through the intersection.
> --
> Stop Mad Cowboy Disease: Impeach the son of a Bush.
I understand your situation. Every now and then I drive to Minneapolis,
usually arriving during the evening rush hours. At least our engines shut
down when we're at a standstill on a 70 mph interstate. I love life in the
sticks.
Posted by mrv@kluge.net on May 21, 2006, 4:50 pm
Michelle Steiner wrote:
> wrote:
> I doubt that there will be any build up of rust on drums or rotors.
You haven't seen my brakes, then!
as I've mentioned before, if you are a high mileage driver, your brakes
will last a long time.
If you're a low mileage driver like I am (43,715 miles at my last
fillup on my 2001), particularly if your area likes to salt the roads,
you'll probably need to replace your brakes sooner, due to rust.
to quote myself from a Dec. 9, 2005 post:
<quote>
On my recent major service (first time to this dealer), they inspected
the brakes. (Previous services at other dealers I only specified the
oil/filter change, so no inspections done on the car.) I was told that
the front brakes are worn 80%, and the rear are worn only 40%, and I
should start saving for a front brake job (front pads and rotors) for
sometime soon. The rotors are rusted, and the pads are pitted. I was
told that it was to be expected of a car with low mileage/short trips.
I did note that when I had put on my winter tires (a week before the
service) I did note that the bare assembly behind the wheel all looked
very rusted, so I wasn't too surprised. But, since this was my first
time to this dealer, I didn't want to just up and give them a front
brake job (feel like being taken advantage of).
</quote>
(Note that US Prius have front disc brakes, rear drum brakes. Other
countries have disc brakes all around...)
Posted by A Sherman on May 28, 2006, 1:10 pm
"Michelle Steiner" wrote ...
> "Bill" wrote:
>> I've read here or in the Yahoo groups that extensive use of
>> regenerative braking instead of mechanical braking will result in the
>> build-up of rust on the drums and rotors.
> You don't have a choice under normal conditions; it uses regenerative
> braking except for hard or panic stops and when the car is traveling
> under six miles per hour. So every time you stop the car, you're using
> mechanical brakes.
You can prevent use of both regenerative braking and compression braking by
switching to "N" before stopping. I have only tried it at low speeds.
Al
Posted by Mike Rosenberg on May 28, 2006, 1:45 pm
> You can prevent use of both regenerative braking and compression braking
> by switching to "N" before stopping.
Why would you _want_ to stop regenerative braking?
--
Mike Rosenberg
<http://www.macconsult.com> Macintosh consulting services for NE Florida
<http://www.cafepress.com/macconsult,macconsult4> Mac-themed T-shirts
<http://bogart-tribute.net> Tribute to Humphrey Bogart
Posted by Bob Wilson on May 29, 2006, 3:24 am
> > You can prevent use of both regenerative braking and compression braking
> > by switching to "N" before stopping.
>
> Why would you _want_ to stop regenerative braking?
He is suggesting using "N" so the brakes will 'wipe off' the rust. I'm
not sure I agree with this approach. If I were doing it, I'd probably go
with a hard-braking that engages the anti-skid . . . if I thought it
would work. But I've got an NHW11 which doesn't have as aggressive
regeneration as the NHW20.
Bob Wilson
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>> Where I live, if there is a stop light at a highway intersection
>> there is a flashing light some distance before the intersection
>> warning a driver that the light is about to turn red. With a little
>> experience one can accurately determine when to start coasting.
> What about city or suburban traffic? Regardless, around here there are
> no such warnings--and for most of the semi-rural roads here, there are
> stop signs rather than traffic lights. I know when to start coasting
> for them, but often there's traffic behind me, and I can't coast as
> long/far as I would want because of that.
>> While the light is red I'm regenerating, arriving at the intersection
>> just as the cars there are pulling away on green.
> Quite often, I'll be at a stop light for two or three cycles--and stop
> signs, which are almost all four-way these days, is stop-go-stop-go,
> etc., until one gets through the intersection.
> --
> Stop Mad Cowboy Disease: Impeach the son of a Bush.