5 Comments

Welcome to the world of Zbee!

Using 1,5 ton of vehicle to transport 80 kg of goods doesn’t make sense in today’s world where environmental awareness is increasingly recognized.

I have spent many years thinking about how to improve personal transportation. It is inevitable that energy efficiency must be dramatically improved.  The car is the perfect and most flexible tool to take the entire family going to the mountains skiing. However, this is a task that is very rare. The most common way to use a car is by a single driver going to work.

We need to rethink the mode of transportation we use and how and when we use it.  The choices for transportation is very limited today. For many people the car is the most practical choice available.

I am convinced that there is room for a product between a bicycle and a car. A small, agile vehicle that offers protection from the elements and comfort but still uses a very limited amount of energy. Clean Motion is all about creating such a vehicle. Welcome to the world of Zbee!

Göran Folkesson

CEO

3 comments
leephenx
leephenx

Agree, we have the same concern of the use of the space-hogging cars (Hulk-Hoggin cars :)) on crowded narrow streets/roads even the driver is the only passenger in the car, what a waste of space and time and energy on traffic jam!

But again, why don't create a mini car (the REAL/TRUE City Car) with a size of 1 m (W) x 2 m (L) [approx.] like Mr.Bean's Morris car compacted even more instead of 3-wheeler bike? In my country, this type must have driver licence too and mostly used for 'mini taxy' and many have tumbling upside-down or crashing into other cars/bikes/pedestrians because of careless driver trying to be the next Schumacher on Ferrari with high-speed turning but with no real racer skill involved.

4-wheel is better than 3-wheel in term of road grip/traction/braking and high-speed turning stability, esp. when braking - almost everybody knew that 2-wheeler bikes are dangerous at braking (esp. on wet slippery road) not only due to its lightweightness but also the 'footing' of the wheels on the road that have less 'grip' than 4-wheelers or more - this is why 2-wheel bikes have higher record history of road accidents (not be able to brake on time/spot a.k.a. 'long braking' caused by 'drifting' fx or 'wheel lifted/floating off the road losing grip on sudden braking'), this is basic physics mechanics everybody should already knew.

And says who we can't make a 4-wheeler in the size and weight of 3-wheeler?

When I saw the design, it's more weighted/closer to a bike than a car since it has no doors (less security, besides the small baggage bay at rear you can't store your shopping bags or anything in the back cargo bay [or back passenger seat] since someone may snap them on redlight intersection when you're idle/stop, a waste of space). This is unacceptable in the cramped urban cities where traffic jams and crime on roads/streets on idle traffic are everyday meals. So, it's reasonable why your design is used as 'BAJAJ' replacement (which is a public vehicle type or 'mini taxy' type) in Indonesia, and not as private vehicle replacement.

All electric cars designed locally are 4-wheeler in Indonesia, since they knew it's very unsafe to let your vehicle without doors when you store goods in the car, even on traffic jams! Road Crimes are very HIGH in urban/megapolitan cities like Jakarta, either you must have high awareness of surroundings and very good skill in biking when using 2-wheeler bikes so you can escape the crime perpetrators 'hiding' in the darkness or widely-known slum areas.

They need a car with a size of mini Morris car as their bike replacement, so they can stay safe and in the same time still can slip thru the traffic jams with the narrow width, and the lower/cheap reasonable price tag so they can buy & maintain it.

So, the 'weakness' summary of your '3-wheeler ride' design is:

1. It's a 3-wheeler (Standard 1F+2R wheels style). Everybody who have ride of similar type (ATV, tricycle, Indian 'BAJAJ', etc) may have already know its weakness, mostly on stability/traction issue on high-speed turning, better braking than 2-wheeler but worse than 4-wheeler - doing both (high-speed turning and braking) at the same time will be very likely causing a tumbling/rollover off the street, we can't even guarantee a 4-wheeler can avoid that 'tumbling over' situation, there's no way 3-wheeler can avoid this unless you limit the turning degree (means bigger turning radius) or limit the speed - so you have the worst-case idea of 3-wheeler here. You should know the mind of driving people in Jakarta, when they need for speed they will do it to the max, only traffic jams limit their speed - that's why the automatic gear (AT) type is the popular one here - less shifting work while they can still whip their rides to the max possible acceleration on the chance. They only still not know there's electric motor solution to make it even more energy efficient, both to fuel and shifting work (not all people really care to air pollution and/or motor-noise level here, because of high price and maintenance level of electric cars and unpopularity, they still use the ICE/pollutant noisy cars). In short, what they need is a standard 4-wheeler car with electric motor (and mini size car for some more-road-space-care & 'drive-thru narrow space' people like me), plus similar buying + maintenance price or lower.

Some design use "reversed tricycle" style (2F+1R wheels) to improve stability on high-speed turning, but no improvement on traction/braking side (still a 3-wheeler), even esp. on rear single wheel - it may raise/floating off the road surface on a hard-brake (like those classic prop planes with a "nose-up" style to avoid trip over to front on a hard-brake) thus only front 2 wheels are effective on a hard-brake event. It's easier to trip over to front when center-weight point is not on the rear area.

I mention this issue, since lightweight is on your optimization (and essentially, more wheel adds more weight - of the same/uniform wheel size+weight of course), otherwise "the more weight a ride/car has, the more stability on high-speed turning it has" a.k.a. "not easily tripped over or slipped off the street ob high speed turning and/or braking".

2. It's a Doorless ride.  Less security than Door-equipped rides, both for people and cargo intactness, "out of possible harmful ways" is not covered here. To save space, you can use the sliding doors solution (like VW Combi's [Mini-Bus] middle door-opening style), either to rearward/forward (preferred) or upward like Lamborghini's style. You already have the saving weight solution, so I won't cover that here. Some people like me are really space-saver thus very efficient in space usage, so the rear passenger seat will be normally used as cargo bay when there's no back passenger, that's why normal car doors are needed for us who can't stand to look after our goods on the back seat for every 1 minute. As you said most cars are driven by 1 people, a.k.a. the driver itself - so doors are really needed to protect our goods.

If you need/like to current design where the driver is on the center like biker/racer style, then there's no reason why we can't turn a Morris mini car into a racer style a.k.a. "center seat" style. This will move the 2nd passenger normally on driver's side to the rear/back seat as result. The car size and seating config still unchanged to yours (1 driver at front + 2 passengers on rear) may be a bit more additional 1 wheel weight as a compromise to added more stability on high-speed turning/braking, and I do love this rear seating interchangeable usage (passenger seat/cargo bay), perfect for my (mini) city car imagination for cramped traffic-jammed narrow-street cities like Jakarta, as I advocated to locals here eagerly (2+2 or 1+2 seating config, not so much difference to my mini car design imagination). No one of sanely enough people will stay forever in a car, even it's so wide like his/her living room, if they trapped in a horrible dayful traffic jam with a numb ass+feet - so I guess, most time-catching/racing-craze/roadspace-hunting people will be very OK with mini Morris-sized cars, esp. if it's an energy-saving non-polluting noiseless one.

May be you can do all of these remodifications on 4th version of Zbee, I hope so, if you want to enlarge your scope of market more than the Indian 'BAJAJ' (mini-taxy) replacement in Indonesia.

OsmanTanDarcan
OsmanTanDarcan

I agree, for many years i have thought that 1 driver in most cars is a waste of resources, and it pollutes the air. In Istanbul there are many traffic congestions, there are hundreds, sometimes thousands of cars waiting in line and many don't even turn off the engines while waiting. Electric vehicles mostly don't use power when not moving..