Re: [EVDL] EV Brakes

2018-05-24 Thread Lawrence Harris via EV
Depending on how the car works and if the brake lights are engaged when regen braking it could be considered a hard braking event and increase the likelihood of the car behind rear ending you so it’s not clear the insurance company is wrong in this. But as noted it does depend on factors they

Re: [EVDL] Silicon Mobility and 30% Efficiency Increase

2018-03-21 Thread Lawrence Harris via EV
It’s an interesting paper, they are talking about the use of co-processors to offload the inner control and improve performance. I could not find any percent value in the document so the 30% does not come from them. What they have is basically graphic controller for EV’s. It’s not clear if

Re: [EVDL] A Living legend - Dave Cloud has passed from this LIFE

2018-01-19 Thread Lawrence Harris via EV
Oh oh oh... Rest in Peace Dave and my condolences to Loy and his family. I remember him coming to many REV! shows (now called Electrafest) here in Vancouver Canada. He would bring a couple of his electrathon cars to race and to show the high school kids what was possible. They didn’t look

Re: [EVDL] Another recommendation for a drive way protection circuit....

2018-01-09 Thread Lawrence Harris via EV
Hi Jay, nice work. I have a couple of times been saved by the drive-a-way interlock so yet I too would recommend it for anyone. Question though, what’s on the other end of your 110v opportunity charge cable? It looks like a male, male cable and that is pretty dangerous. I would have put a

Re: [EVDL] EVLN: GM's Multiple-Magnet-Length Electric-Motor Patent

2018-01-04 Thread Lawrence Harris via EV
Interesting from a production point of view. If they have a need for low quantities (relative) of motors with different HP then it might make sense to tools once and then be able to vary the characteristics during assembly. I was thinking it might be more interesting if they put the rotor on

Re: [EVDL] Combating ICED EV parking spaces

2017-12-13 Thread Lawrence Harris via EV
I am thinking we are talking about malls and other public charging stations and that there would be a grace period after charging completes. Businesses that supply EV charging (I had such for a few years) can set their own rules. Regards, Lawrence Harris lhar...@haritech.com > On Dec 13,

Re: [EVDL] Combating ICED EV parking spaces

2017-12-13 Thread Lawrence Harris via EV
every day not > charging. > Apparently, that person does not want to get the message, so unless the > policies are changed and he is towed, > he is going to block the charging spot for everyone > > -Original Message- > From: EV [mailto:ev-boun...@lists.evdl.o

Re: [EVDL] Combating ICED EV parking spaces

2017-12-13 Thread Lawrence Harris via EV
It works both ways too. I often see EV’s or plug in hybrids parked in the EV spot with either the charger not plugged or the charger at end of cycle. As was noted it’s an EV charging spot, not an EV parking spot. I often don’t bother with the EV spot because I don’t need the charge. Regards,

Re: [EVDL] Smart ED questions

2017-10-23 Thread Lawrence Harris via EV
Can’t really answer the questions as I have not tried to get any of this information. In Canada the car only comes with the battery. Mine was bought in late 2013 and is a 2014 model year. So far I have just taken it in once per year for their checkup routine and the battery seems to only

Re: [EVDL] Efficacy of regeneration to charge battery

2017-10-23 Thread Lawrence Harris via EV
I see this all the time when I go up to the ski hill. I start about 80% at the bottom, arrive with 40% or so and then when I get back down I am back to 60% (all rough figures but in the ball park). Without the recovery on the way down I would probably need to stop and charge on the way home.

Re: [EVDL] Electric vehicle subsidies: expensive and ineffective?

2017-08-03 Thread Lawrence Harris via EV
The EPA (https://www.epa.gov/energy/greenhouse-gases-equivalencies-calculator-calculations-and-references ) calculates 4.73 metric tons CO2/vehicle/year for a passenger car, so 47.3 over 10

Re: [EVDL] ? Is this really a Smart Fortwo ED EV that burnt to acrisp ?

2017-07-11 Thread Lawrence Harris via EV
The European smart ED supports 22kW charge rate, we only get 3.3kW with a measly 7.2kW on the 2017 models. So a Europan smart could maybe ask for 22kW from a 7.2kW EVSE which if it failed to limit the current might overheat and … Seems unlikely the EVSE would fail and the beaker would fail and

Re: [EVDL] ? Is this really a Smart Fortwo ED EV that burnt to acrisp ?

2017-07-10 Thread Lawrence Harris via EV
Interesting. Obviously the plastic body of the smart was quite flammable and maybe Mercedes should address that problem. My normal comeback on these incidents is - have you noticed those rectangular black spots along the sides of the highways in summer? The stated reason in the article was

Re: [EVDL] Leaf onboard tire repair kit.

2017-04-25 Thread Lawrence Harris via EV
I was told to use this goop only in an emergency as often the tire had to be replaced after use. I apparently can harden in the tire and cause it to be unbalanced and that make the tire unrepeatable. I just call BCAA (AAA) for a tow or in my case called my sister in law to bring one of my

Re: [EVDL] UPS truck whirring? Whaaaat!?

2017-04-07 Thread Lawrence Harris via EV
A company here in Vancouver,BC made a bunch of electric UPS trucks some years back so they have been experimenting for a while. They were looking to saves costs in the warehouse when they don’t need to exhaust diesel fumes or have employees wearing particle filter masks. Also saved a ton on

[EVDL] OT / Re: Chelsea Sexton on NPR talks about EV's

2017-03-08 Thread Lawrence Harris via EV
GM is big enough to sit on their backsides until they are ready and even fail a few times before they get it right but put the ‘GM brand’ on an electric car and many many people will see it as ‘real’ and begin to buy them. I am seeing a waiting list for the BOLT here in Vancouver. People are

Re: [EVDL] Regen and Smart Cruise Control

2017-03-01 Thread Lawrence Harris via EV
or consciously. Lawrence > On Mar 1, 2017, at 05:22, Willie via EV <ev@lists.evdl.org> wrote: > > > > On 02/28/2017 09:43 PM, Lawrence Harris via EV wrote: >> On my smart ED the regen is a hybrid of these. > >> slow you down while smoothly engaging th

Re: [EVDL] Regen and Smart Cruise Control

2017-02-28 Thread Lawrence Harris via EV
On my smart ED the regen is a hybrid of these. When you lift the accelerator pedal it will will begin to regen and slow you down. If you feather the peddle you can coast and on some models there is a control that allows you to vary the regen on the accelerator pedal from none to some upper

Re: [EVDL] Smart cruise control

2017-02-27 Thread Lawrence Harris via EV
I think a smart cruise control would be nice but I have not seen it yet. If there was a system that would allow you to say gain 15 to 20 kph (mph?) on down slopes and then not engage again until you dropped to say minus 5 kph on the upslope that might emulate what drivers do when they

Re: [EVDL] Tesla with auto pilot predicts accident.

2016-12-28 Thread Lawrence Harris via EV
ed the accident with an audible alarm IMO. Probably > sees there relative speeds off of gps in their phones or car NAB systems. I'm > amazed what one can learn about traffic with just google maps. > > Sent from my iPhone > >> On Dec 27, 2016, at 9:54 PM, Lawrence Harris via EV <

Re: [EVDL] Tesla with auto pilot predicts accident.

2016-12-27 Thread Lawrence Harris via EV
I don’t think there was a ‘prediction’ as in the future tense. The radar saw the other car(s) start to slow and applied the brakes, I don’t think the red car even put it’s breaks on. Also the Tesla driver had sufficient spacing to react safely. It’s interesting so speculate what the driver

Re: [EVDL] Shorted FB1-4001A DC motor?

2016-12-27 Thread Lawrence Harris via EV
I would tow it home then open the brush box and flush it with clean water and check for foreign objects. Maybe someone who has done it can comment but I would use a smallish 12v battery to spin up the motor unloaded and see what happens. I believe DC motor controllers often fail shorted so

Re: [EVDL] Selling an EV on EBay

2016-11-21 Thread Lawrence Harris via EV
Yup, sounds like a scam so if you want to proceed first make sure the cheque clears before you ship. The typical additional part is they send a cheque for more than the amount saying the extra is for shipping or some such and ask that you refund them the difference, by cheque or money order.

Re: [EVDL] $52M/yr 'Quiet (Electrified) cars' alert-sound rules by2019/09

2016-11-15 Thread Lawrence Harris via EV
Yes I think the noise makers could be directionally forward. If sounds were standardized in their frequency then sensors could be developed that would listen for that noice and alert blind and deaf people / even cyclists to the fact there was a car approaching. You could even code the speed

Re: [EVDL] $52M/yr 'Quiet (Electrified) cars' alert-sound rules by 2019/09

2016-11-15 Thread Lawrence Harris via EV
Thanks, just submitted my comments to the hotline. Maybe they will add them to whatever committee looks at drafting this. Lawrence > On Nov 15, 2016, at 10:56, tomw via EV wrote: > > http://www.nhtsa.gov/About-NHTSA/NHTSA-Contact-Information > > -- > View this message in

Re: [EVDL] $52M/yr 'Quiet (Electrified) cars' alert-sound rules by 2019/09

2016-11-15 Thread Lawrence Harris via EV
Well I agree that until pedestrians don’t have the right of way _period_ we need to deal with this. The approach of having a noise emitted at low speed is really not a big deal, most of the time it’s inaudible inside the car. I think a turbine whine at low speed and maybe even a beep beep

Re: [EVDL] Cheap L2 charging in parking places: Bolt EV'sIn Production

2016-11-08 Thread Lawrence Harris via EV
I think that in general a 120v 20A receptacle at each parking stall would do most drivers in an office tower - we have at least one in Vancouver here. In a mall or other shorter term parking situation a small set of full J1772 L2 chargers is probably the best solution. Lawrence > On Nov 8,

Re: [EVDL] Cheap L2 charging in parking places: (NOT)

2016-11-07 Thread Lawrence Harris via EV
This is exactly how one of the buildings in downtown Vancouver is wired. Every stall on the main floor (I didn’t look at the other floors) had a 120v 20A plug. Just park and plug in. Lawrence > On Nov 7, 2016, at 05:45, Robert Bruninga via EV wrote: > > All of which is why

Re: [EVDL] Insurance Forensic Eng crying wolf ... (does this explain why Insurers' EV-uptake is slow?)

2016-10-30 Thread Lawrence Harris via EV
I does read like he is fishing for work. With no background data listed and to my mind obvious misleading statements. There is also no mechanism on the part of the site to allow for comments on any article so one can only assume this is a essentially a fluff piece by the editorial department.

Re: [EVDL] Thanks for the Smart ED, iMiEV and Leaf Info

2016-10-27 Thread Lawrence Harris via EV
Yes, the warrantee is 4 years with no special mention of the HV battery. I have had no issues to date and the two closest MB dealers both service the car no questions asked. I have not asked the cost of a replacement battery but there is apparently a Gen II and Gen III and one blog post

Re: [EVDL] Thanks for the Smart ED, iMiEV and Leaf Info

2016-10-26 Thread Lawrence Harris via EV
Just to add my own view here. I have had a smartED 2013 for three years and it’s been a great car. I drive it pretty much daily and it’s been a dream to drive, fast and agile, tons of space to carry stuff. Basically perfectly suited to city driving. As for service my local MB dealer has

Re: [EVDL] Cut-EVSE-cord-vandalism (pull-out cord)

2016-09-06 Thread Lawrence Harris via EV
In essence that’s what you get. It’s a little bulky but most cars come with the EVSE for 110v/12amp and a standard wall plug so you can charge most anywhere there is a plug. The issue is with the higher power EVSE’s that need the feedback circuit to determine how much current the car is going to

Re: [EVDL] Fwd: EVLN: GM's 1st 200mi EV will launch as a driverless (autonomous) Lyft platform

2016-07-27 Thread Lawrence Harris via EV
According to https://seriousaccidents.com/legal-advice/top-causes-of-car-accidents/ the #1 reason for an accident is distracted driving. In this case that would seem to be the cause. It is certainly clear that the technology involved might have increased the chance that the driver felt they

Re: [EVDL] Fwd: EVLN: GM's 1st 200mi EV will launch as a driverless (autonomous) Lyft platform

2016-07-26 Thread Lawrence Harris via EV
I think that it’s only a matter of time. The limiting factor is probably getting all the non autonomous vehicles off the road or requiring them to add transponders so the autonomous cars can be on the lookout for them. The Tesla t-boning the semi is nothing new, if you google about a bit you

Re: [EVDL] Charger connector options

2016-05-19 Thread Lawrence Harris via EV
I agree, I would not put a J1772 inlet if the there is no charger behind it or if the charger can not be make to conform to the J1772 protocols. That would be dangerous, there are many standard 5 conductor plugs that would be usable if it’s just to make a single cable coming out of the car. I

Re: [EVDL] Charger connector options

2016-05-19 Thread Lawrence Harris via EV
Is your charger 110/220 volt compatible? Have you considered putting a J1772 inlet maybe where the gas cap is? There is some electronics to install behind it - a relay and a pilot signal. I suspect the hardware is for sale somewhere as I see the inlet ports are readily available for about

Re: [EVDL] Strata (Condos) won’t allow parking space EVSE modifications in bc.ca

2016-04-04 Thread Lawrence Harris via EV
Yes and no. I have a townhouse form of strata and I have a 120v plug in my garage and easy access to my electrical panel so it was not a problem. The issue is almost universally that strata’s don’t like to pay the cost via the ‘public’ purse for a benefit that is then privately consumed.

Re: [EVDL] Electric Coop magazine article on historic EV

2016-02-17 Thread Lawrence Harris via EV
I don’t think range has ever been the issue, it’s speed and range combined that’s hard. The Detroit Electric was also in that range. The listed range was 80mi (130km) using NiFe batteries. There was a range ’test’ done where it reached 211mi (340km) but at a speed of about 20mi/hr. There

Re: [EVDL] Suitable Load?

2015-11-05 Thread Lawrence Harris via EV
Yes but temperature is affected by current which is affected by voltage so in some sense instantaneous resistance is a function of voltage. The instantaneous resistance will be a factor of of the base material, amount the resistance changes due to temperature and the current temperature. The

Re: [EVDL] Light-weight 100W PV roof panel for 48V e-carts> ?Is it worth it?

2015-09-22 Thread Lawrence Harris via EV
It’s an interesting problem that I believe has a moving target since in some places you get paid retail for your excess electrons but in other jurisdictions you get paid a fraction of retail. The power companies if they had their way would pay a pittance for your excess and then sell you back the

Re: [EVDL] EVLN: Questions answered> Should you buy an electric bike?

2015-09-14 Thread Lawrence Harris via EV
Here in BC I don’t think we have the must peddle requirement. I see lots of scooter or moped like vehicles that have vestigial pedals mounted far to the back where they are out of the way of your feet. These are often removed after sale leaving basically and electric scooter. There are a lot

Re: [EVDL] FW: On the road again.

2015-05-28 Thread Lawrence Harris via EV
Just remember to check each cell periodically to ensure they are staying together. If one cell is weak it will drift down each cycle and eventually you will overcharge the good ones and destroy the weak one (this is where fires come from). A little exaggerated perhaps but this is what

Re: [EVDL] Fw: Supercharging is not the way.

2015-05-14 Thread Lawrence Harris via EV
Very nice diagram. I didn’t realize the Volt was a series / parallel hybrid. It can reconfigure to operate in both modes. Primary mode is as a series hybrid with electric only until the battery depletes, then series hybrid for long range causing and then if torque requirements are high it

Re: [EVDL] Supercharging is not the way.

2015-05-13 Thread Lawrence Harris via EV
The normal verbiage used is average and you are correct (I think) in pointing out that if a BEV is to be your only vehicle you might want to look at average plus 2 standard deviations which would cover 95% of your travels and leave only 5% needing to use public transit or a rental vehicle. In

Re: [EVDL] self driving cars

2015-04-06 Thread Lawrence Harris via EV
According to the Insurance Institute for Highway Safety, 2013 there were 32,719 fatalities on US roads in 2013. One wonders how many of them could have been prevented if distracted driving was eliminated as a cause. Yes I think even if we don’t get to full self driving in the near future the

Re: [EVDL] Making solar work in a conventional vehicle.

2015-03-30 Thread Lawrence Harris via EV
Agreed. The 'solar garage' has so many benefits. The placement of the cells can be (more or less) optimized for charging. The panels can be fairly standard ones and so relatively cheaper. The dump pack can provide emergency power for the freezer and other essential items. The space underneath

Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair drive! (video)

2014-10-01 Thread Lawrence Harris via EV
I am afraid I side with Tesla on this. As much as I like to be able to tinker with 'my stuff' here we have a very complex system with many sensors and actuators that are all controlled by the onboard computer systems. The car has been repaired by (apparently) someone with no training on

Re: [EVDL] EVLN: As EV battery prices fall ?More range or lower 100mi EV cost?

2014-08-28 Thread Lawrence Harris via EV
Yes but to make battery swapping economical we need the D cell for car batteries and given the proliferation of laptop and camera batteries that seems unlikely. You can buy a rechargeable D cell at your local retail store that has a capacity of 2200maH just like the AA beside it - guess what -

Re: [EVDL] To Noalox, or Not to Noalox (was: Lithium battery setpoints...)

2014-07-31 Thread Lawrence Harris via EV
Remember that in almost any connection there is always an oxide layer. The purpose of the sanding is to remove enough of this so that a reasonable pressure between the wire/strap and the connection can break through this layer and form a gas tight connection. The grease is just there to keep

Re: [EVDL] Controller page updates

2014-07-17 Thread Lawrence Harris via EV
Lee's page worked great and I am a big fan of simple pages constructed with basic HTML tools. Probably not quite what is being discussed but this is what we are dealing with. Getting requirements to meet WCAG 2.0 Level A or AA for our web pages. http://www.w3.org/WAI/WCAG20/quickref/ This

Re: [EVDL] Question about amp-hr

2014-07-09 Thread Lawrence Harris via EV
Heck, to draw 10uV at 1000A would be an interesting application. In any event you are right. 1000Ah rating only makes sense as a power value if you know the battery so you know then that 1000Ah is really 12,000Wh for a 12v nominal battery. What people mostly like to know about EV batteries