Search found 265 matches

by HeadsUp
Wed, 04 Mar 2009, 09:29
Forum: Batteries, charging, management and monitoring
Topic: Correct mounting of LiFePO4 batteries
Replies: 11
Views: 3512

Correct mounting of LiFePO4 batteries

are you guys using the Thundersky BMS , or did you find something better than their unit ?

thankyou
by HeadsUp
Wed, 04 Mar 2009, 09:25
Forum: Batteries, charging, management and monitoring
Topic: Volts AHA and TS Lithiums
Replies: 21
Views: 3225

Volts AHA and TS Lithiums

hey guys my back of envelope notes at present are leaning towards ; Honda CRV , Toyota RAV4 or similar sized body stripped out and lightened everywhere with direct drive , 2 wheel drive only and appropriate diff ratio to give 100 kmhr maximum speed , i am not looking for a racing car , looking more...
by HeadsUp
Wed, 04 Mar 2009, 08:29
Forum: Electric motors and controllers
Topic: cruise control
Replies: 22
Views: 3180

cruise control

thankyou genitalia


keyswitch for sport mode sounds good , if your teenage son wants to borrow the car then i am sorry son , thats as fast as it goes.

Image
by HeadsUp
Wed, 04 Mar 2009, 05:22
Forum: Electric motors and controllers
Topic: cruise control
Replies: 22
Views: 3180

cruise control

thanks Woody . appreciate that i anticipate that output shaft RPM will be the most accurate on the AC unit, once i calculate the tyre circumference and diff ratio and match the controller to limit RPM accordingly , that should give me a nice accurate cruise control. looking forward to this i tell ya...
by HeadsUp
Wed, 04 Mar 2009, 01:26
Forum: Technical and conversion discussion
Topic: trip meter / charge remaining
Replies: 16
Views: 2650

trip meter / charge remaining

can people advise how they have set up metering for trip calculation ? if i leave home and reach the halfway point in battery range , i want some kind of visible indicator to flash , or drop a brick on the wifes head or something . what is the best " darwinian method " arrived at so far ? thankyou ...
by HeadsUp
Tue, 03 Mar 2009, 23:21
Forum: Electric motors and controllers
Topic: cruise control
Replies: 22
Views: 3180

cruise control

hi people due to the prevalence of robbers on the streets these days ( speed cameras ) and due to the increasing amount of changes in speed limit on the roads ( i counted 9 changes in speed limit up and down on a 7 kilometre stretch of road near my home ) I want to incorporate a push button cruise ...
by HeadsUp
Tue, 03 Mar 2009, 19:06
Forum: Members Machines
Topic: Proton Satria (Kim Ryan)
Replies: 21
Views: 6013

Proton Satria (Kim Ryan)

beautiful work . love the diff- motor setup may i ask where you sourced the aluminium extrusions for the heatsink from ??? good work mate. PS , did the original axles have a telescoping spline , and was there enough travel in the spline ? the diff looks higher than what the original would have been ...
by HeadsUp
Tue, 03 Mar 2009, 18:41
Forum: Members Machines
Topic: Toyota Corolla Conversion
Replies: 128
Views: 24995

Toyota Corolla Conversion

good work lachlan just wondering , the gearbox mounts are rubber , and will probably have a little bit of movement the cables from your motor to the controller look quite short and tight just wonder if you need to have more cable length to accomodate vibration and flexing , adding 200 - 250 mm extra...
by HeadsUp
Tue, 03 Mar 2009, 07:05
Forum: Members Machines
Topic: First drive of industrial ac hilux
Replies: 60
Views: 9793

First drive of industrial ac hilux

hi Mal , great work mate got a question regarding the motor mounting bracket , it looks like about 5 mm sheet ? i think mine will be around 8 mm bisalloy , which is a higher strength steel than mild steel bisalloy is 800 Mpa , mild steel is 400 Mpa , so i can use thinner steel and save weight . i wi...
by HeadsUp
Mon, 02 Mar 2009, 20:30
Forum: Technical and conversion discussion
Topic: NCOP14 regulations, safety and revision
Replies: 143
Views: 18921

NCOP14 regulations, safety and revision

i was thinking of a disc brake which has a spring applying force while at rest like a maxi brake on a semi trailer however they use air pressure to release them we dont want an additional power system ( air compressor ) to release the park brake , so maybe the brake vacuum pump sucking a diaphram re...
by HeadsUp
Mon, 02 Mar 2009, 19:45
Forum: Technical and conversion discussion
Topic: NCOP14 regulations, safety and revision
Replies: 143
Views: 18921

NCOP14 regulations, safety and revision

hey guys , with respect to design of a " toothed locking pawl or cog " you want to consider that if its an ignition key on- power on- cog disengaged scenario , what happens if you lose electrical power for any reason while driving , or you accelerate hard and the drive motor sucks all the power , ca...
by HeadsUp
Mon, 02 Mar 2009, 18:51
Forum: Technical and conversion discussion
Topic: battery box mounts - do not weld zones
Replies: 3
Views: 1011

battery box mounts - do not weld zones

correct large trucks often have higher qaulity , high tensile strength steel than smaller utes or cars and bolted or rivetted joints are used in those cases exclusively smaller cars / utes have to be checked individually with the manufacturer to get tensile classification , and get a modification pr...
by HeadsUp
Mon, 02 Mar 2009, 00:02
Forum: Technical and conversion discussion
Topic: NCOP14 regulations, safety and revision
Replies: 143
Views: 18921

NCOP14 regulations, safety and revision

i think it should be in the checklist for EV builders , whatever drive system they use , builders and authorities have to understand the need for protection systems if it requires isolation to prevent power generation under tow , then the guidelines must specify as such it is not necesarily applicab...
by HeadsUp
Sun, 01 Mar 2009, 06:52
Forum: Technical and conversion discussion
Topic: NCOP14 regulations, safety and revision
Replies: 143
Views: 18921

NCOP14 regulations, safety and revision

i didnt have 3 hours to read all three pages of posts in this thread , so... forgive me if this has been mentioned already Regarding electrical safety the field winding of the motor will probably also need to be isolated at the motor to prevent a towed vehicle from becoming a generator , so include ...
by HeadsUp
Sat, 28 Feb 2009, 09:40
Forum: Technical and conversion discussion
Topic: battery box mounts - do not weld zones
Replies: 3
Views: 1011

battery box mounts - do not weld zones

Hi people i work in heavy mining , vehicle and structural engineering , just want to mention some do's and dont's when it comes to fastening battery boxes to a vehicle chassis , in particular utility chassis rails I have seen alot of photos on the web ( mostly USA ) of EV conversions where guys hav...