Electric police vehicles

Started by bitrex July 11, 2018
A couple police departments have started fielding Chevy Bolts as patrol 
cars/interceptors and it seems early impressions have been positive, the 
battery charge can easily last a full shift, sub 6 second 0-60 times for 
pursuit, don't need to burn fuel keeping the lights and accessories 
running on work detail etc.

They're near completely silent at low speed lets you sneak up on 
situations, the base model price prior to conversion is pretty easy on 
the budget

<https://www.greencarreports.com/news/1112212_is-this-the-countrys-first-chevrolet-bolt-ev-police-car>
On 12/07/2018 9:33 AM, bitrex wrote:
> A couple police departments have started fielding Chevy Bolts as patrol > cars/interceptors and it seems early impressions have been positive, the > battery charge can easily last a full shift, sub 6 second 0-60 times for > pursuit, don't need to burn fuel keeping the lights and accessories > running on work detail etc. > > They're near completely silent at low speed lets you sneak up on > situations, the base model price prior to conversion is pretty easy on > the budget > >
<https://www.greencarreports.com/news/1112212_is-this-the-countrys-first-chevrolet-bolt-ev-police-car>
>
!! Key puns on electric police
On Wednesday, July 11, 2018 at 9:33:51 PM UTC-4, bitrex wrote:
> A couple police departments have started fielding Chevy Bolts as patrol > cars/interceptors and it seems early impressions have been positive, the > battery charge can easily last a full shift, sub 6 second 0-60 times for > pursuit, don't need to burn fuel keeping the lights and accessories > running on work detail etc. > > They're near completely silent at low speed lets you sneak up on > situations, the base model price prior to conversion is pretty easy on > the budget > >
<https://www.greencarreports.com/news/1112212_is-this-the-countrys-first-chevrolet-bolt-ev-police-car> Yeah, I can see that. The back seat is a bit small though. If you put in a screen to protect the officer there won't be room left for feet. Some police departments use the same vehicle on all three shifts. With the Bolt requiring an hour or two to charge up that might be a problem even if you only charge every other shift. I guess they can charge on their meal break. Rick C.
bitrex wrote:
> A couple police departments have started fielding Chevy Bolts as > patrol cars/interceptors and it seems early impressions have been > positive, the battery charge can easily last a full shift, sub 6 > second 0-60 times for pursuit, don't need to burn fuel keeping the > lights and accessories running on work detail etc. > > They're near completely silent at low speed lets you sneak up on > situations, the base model price prior to conversion is pretty easy on > the budget > >
<https://www.greencarreports.com/news/1112212_is-this-the-countrys-first-chevrolet-bolt-ev-police-car> The price includes subsidies of course. And PD's don't have 3 fleets of cars for 3 shifts.
On 07/12/2018 03:20 PM, gnuarm.deletethisbit@gmail.com wrote:
> On Wednesday, July 11, 2018 at 9:33:51 PM UTC-4, bitrex wrote: >> A couple police departments have started fielding Chevy Bolts as patrol >> cars/interceptors and it seems early impressions have been positive, the >> battery charge can easily last a full shift, sub 6 second 0-60 times for >> pursuit, don't need to burn fuel keeping the lights and accessories >> running on work detail etc. >> >> They're near completely silent at low speed lets you sneak up on >> situations, the base model price prior to conversion is pretty easy on >> the budget >> >>
<https://www.greencarreports.com/news/1112212_is-this-the-countrys-first-chevrolet-bolt-ev-police-car>
> > Yeah, I can see that. The back seat is a bit small though. If you put in a
screen to protect the officer there won't be room left for feet.
> > Some police departments use the same vehicle on all three shifts. With the Bolt
requiring an hour or two to charge up that might be a problem even if you only charge every other shift. I guess they can charge on their meal break.
> > Rick C. >
The local police department here has a fleet of around ten late-model Police Interceptor blacked-out Ford Explorers, couple of Police PURSUIT Dodge Challenger/Chargers: <https://www.fcausfleet.com/content/dam/fca-fleet/na/fleet/en_us/dodge/2017/charger-persuit/modelizer/2017-Dodge-ChargerPursuit-VLP-Modelizer.jpg.fleetimage.1440.jpg> and a couple of late model Harley police motorcycles for "crowd control." The town's population is about 8,000 people it's kind of absurd
>"The town's population is about 8,000 people it's kind of absurd "
Nothing is absurd when you are spending other peoples' money that you legally stole from them at gunpoint. Oh, you MUST pay taxes ? How about a town of like 3,000 people paying for like 6 helicopters ? We MUST pay that just because they say ? Them days are numbered.
How is the AC powered?  Heating in winter?



On Wed, 11 Jul 2018 21:33:44 -0400, bitrex <user@example.net> wrote:

>A couple police departments have started fielding Chevy Bolts as patrol >cars/interceptors and it seems early impressions have been positive, the >battery charge can easily last a full shift, sub 6 second 0-60 times for >pursuit, don't need to burn fuel keeping the lights and accessories >running on work detail etc. > >They're near completely silent at low speed lets you sneak up on >situations, the base model price prior to conversion is pretty easy on >the budget > ><https://www.greencarreports.com/news/1112212_is-this-the-countrys-first-chevrolet-bolt-ev-police-car>
Regards, Boris Mohar Got Knock? - see: Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca void _-void-_ in the obvious place --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
On Friday, July 13, 2018 at 12:32:44 PM UTC+2, Boris Mohar wrote:
> How is the AC powered? Heating in winter?
Air-conditioners are heat pumps, and ought to be able to work both ways. Running our flat's air-conditioner as a heat pump in winter is a not a regular occuurence in Sydney, but I've done it from time to time. You tend to need bigger heat pump to keep you warm in winter in colder places than you need to keep you cool in summer, but cars are designed to work over a wide range of environments. -- Bill Sloman, Sydney
On 07/13/2018 06:32 AM, Boris Mohar wrote:
> > How is the AC powered? Heating in winter?
The AC compressor is run from the battery, naturally. It's not really a significant drain; in my Volt on a 90 degree day it draws about 3kW on startup for a few minutes to get the cabin down to about 75 and can then maintain that temperature while driving drawing about 500-700 watts. By comparison maintaining 50-55 mph on level ground draws around 12kW, maybe a bit more in the Bolt due to worse drag coefficient. Heating is resistive, with everything on full blast max temp the heater draws around 5-6kW. You'll be sweating real fast with it like that though for most deep winter days around here 2kW is enough. If the temperature is above freezing the heated seats and steering wheel are usually enough to be perfectly comfortable, that combo draws around 500 watts. There are some patents by Tesla to use waste heat from the battery coolant loop to warm the cabin via a heat exchanger but probably not worth the cost on a ~$35k car, I don't know if they even use that system in the Model 3.
> On Wed, 11 Jul 2018 21:33:44 -0400, bitrex <user@example.net> wrote: > >> A couple police departments have started fielding Chevy Bolts as patrol >> cars/interceptors and it seems early impressions have been positive, the >> battery charge can easily last a full shift, sub 6 second 0-60 times for >> pursuit, don't need to burn fuel keeping the lights and accessories >> running on work detail etc. >> >> They're near completely silent at low speed lets you sneak up on >> situations, the base model price prior to conversion is pretty easy on >> the budget >> >>
<https://www.greencarreports.com/news/1112212_is-this-the-countrys-first-chevrolet-bolt-ev-police-car>
> > > Regards, > > Boris Mohar > > Got Knock? - see: > Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca > > void _-void-_ in the obvious place > > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus >
On 07/13/2018 10:10 AM, bill.sloman@ieee.org wrote:
> On Friday, July 13, 2018 at 12:32:44 PM UTC+2, Boris Mohar wrote: >> How is the AC powered? Heating in winter? > > Air-conditioners are heat pumps, and ought to be able to work both ways. > > Running our flat's air-conditioner as a heat pump in winter is a not a regular
occuurence in Sydney, but I've done it from time to time.
> > You tend to need bigger heat pump to keep you warm in winter in colder places than
you need to keep you cool in summer, but cars are designed to work over a wide range of environments.
>
Don't know why people think the AC is such a significant power drain, it's not. The cabin is like 150 cubic feet, a 5000BTU window AC unit draws maybe 1000 watts max and can cool a 1000 square foot apartment pretty nicely.