Electric Cars: The Basics
For those of you new to zero-emission electric driving, we recommend a read of the following articles:
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The Toyota bZ4X Electric SUV
Toyota Motor Corporation, known simply as Toyota, is a leading global automotive company. The company is one of the largest automobile manufacturers in the world and is headquartered in Aichi, Japan. The company currently has a portfolio of the following fully electric and plug-in electric vehicles:
- Prius Plug-In Hybrid
- Mirai Hydrogen Fuel Cell
- All-electric bZ4X
- RAV4 Plug-In Hybrid
The Toyota bZ4X electric SUV was debuted in April 2021 as the ‘bZ4X Concept’. The is the first electric vehicle (EV) to be based on the e-TNGA platform co-developed by Toyota and Subaru. It is the first pure electric SUV from the Japanese manufacturer and sales commenced in mid-2022.
Despite Toyota’s leadership in hybrid technology, the automotive manufacturer has been rather late it terms of battery-electric vehicles (BEVs). Nevertheless, despite the increased competition in the compact e-SUV/ crossover segment, the bZ4X EV has much to offer, for both families and company-car drivers. The EV is available, both as a front-wheel drive (FWD) and all-wheel drive (AWD).
Both variants are available in the same EV battery size: 71.4 kWh. For the FWD variant, Toyota claims a WLTP certified zero-emission electric range up to 510 km. The AWD variant has a pure electric range up to 460 km. Of course, we need to adjust for the real-world driving conditions. For the FWD bZ4X expect an electric range closer to 430 km and for the AWD bZ4X an e-range up to 385 km is more realistic.
The bZ4X offers DC charging up to 150 kW. Given the price tag of the EV, we would have expected a faster DC charging capability. Nevertheless, the EV can be charged 10%-80% in 30 minutes i.e. just enough time for a short coffee break and bite.
Surprisingly (and disappointingly), the bZ4X electric SUV is limited to a 6.6 kW onboard AC charger. Again, given the price tag, we would have expected a higher AC charging capability. Nevertheless, as most homes in India are powered by single-phase power supply, the 6.6 kW is adequate. The EV can be fully charged via a dedicated single-phase residential EV charger, like myenergi zappi in 9 hours and 30 minutes.
Yes, the EV can be charged via a 3-PIN domestic socket. However, we at e-zoomed discourage using a domestic socket for charging an electric car. We also recommend a topping up approach to EV charging. This way charging times are shorter! Moreover, regular charging is good for the long-term maintenance of the onboard EV battery. Toyota offers a class-leading 10 years or 160,000 km warranty.
In terms of performance, the front-wheel drive (FWD) Toyota bZ4X 150 kW can achieve 0-100 km/h in 7.5 seconds (max power: 221 hp/ 266 Nm torque). While the bZ4X 160 kW all-wheel drive (AWD) can achieve 0-100 km/h in 6.9 seconds (max power: 231 hp/ 168 Nm torque). The top speed of the EV is 160 km/h.
In terms of equipment and technology, depending on the grade chosen, the following are on offer: pre-collision system, lane trace assist, road sign assist, emergency driving stop system, intelligent adaptive cruise control, blind spot monitor, reversing Camera, pre-collision system with pedestrian (day & night), cyclist & motorbike (day) detection, 12.3″ HD Toyota Smart Connect, Toyota Skyview fixed panoramic roof and more.
In terms of practicality, the pure electric Toyota bZ4X family SUV offers ample headroom and legroom for all passengers (front and rear). Rather surprisingly, the EV does not have a glove box! The electric car offers a decent boot size up to 452 L.
Bottom-line, electric driving is good for the environment and the wallet!
PROS | CONS |
---|---|
Good electric range | Onboard charger limited to 6.6 kW AC |
Available as front-wheel drive (FWD) and all-wheel drive (AWD) | DC charging limited to 150 kW |
Practical interior space | Available in only one EV battery size |
The All-Electric Toyota bZ4X SUV (credit: Toyota)
At A Glance | |
---|---|
EV Type: | Battery-Electric Vehicle (BEV) |
Body Type: | SUV |
Engine: | Electric |
Available In India: | No |
Variants (1 Option) |
---|
Toyota bZ4X (from ₹ N/A) |
EV Battery & Emissions | |
---|---|
EV Battery Type: | Lithium-ion |
EV Battery Capacity: | Available in one battery size: 71.4 kWh |
Charging: | 150 kW DC Charging (10%-80%: 30 mins). Onboard Charger: 6.6 kW AC (0%-100%: 9.5 hours) |
Charge Port: | Type 2 |
EV Cable Type: | Type 2 |
Tailpipe Emissions: | 0g (CO2/km) |
Battery Warranty: | 10 years or 160,000 km |
Charging Times (Overview) | |
---|---|
Slow charging AC (3 kW – 3.6 kW): | 6 – 12 hours (dependent on size of EV battery & SOC) |
Fast charging AC (7 kW – 22 kW): | 3 – 8 hours (dependent on size of EV battery & SoC) |
Rapid charging AC (43 kW): | 0-80%: 20 mins to 60 mins (dependent on size of EV battery & SoC) |
Rapid charging DC (50 kW+): | 0-80%: 20 mins to 60 mins (dependent on size of EV battery & SoC) |
Ultra rapid charging DC (150 kW+): | 0-80% : 20 mins to 40 mins (dependent on size of EV battery & SoC) |
Tesla Supercharger (120 kW – 250 kW): | 0-80%: up to 25 mins (dependent on size of EV battery & SoC) |
- Note 1: SoC: state of charge
Dimensions | |
---|---|
Height (mm): | 1650 |
Width (mm): | 1860 |
Length (mm): | 4690 |
Wheelbase (mm): | 2850 |
Turning Radius (m): | 5.6 |
Boot Space (L): | 452 |
bZ4X (150 kW) | |
---|---|
EV Battery Capacity: | 71.4 kWh |
Pure Electric Range (WLTP): | 460 – 510 km |
Electric Energy Consumption (kWh/100 km): | 14.5 |
Charging: | 150 kW DC Charging (10%-80%: 30 mins). Onboard Charger: 6.6 kW AC (0% – 100%: 9.5 hours) |
Top Speed: | 160 km/h |
0-100 km/h: | 7.5 seconds |
Drive: | Front-wheel drive (FWD) |
Max Power (hp): | 221 |
Torque (Nm): | 266.3 |
Transmission: | Automatic |
Seats: | 5 |
Doors: | 5 |
Kerb Weight (kg): | 1,900 – 1,920 |
Colours: | 6 |
NCAP Safety Rating: | N/A |
Charging An Electric Car: An Introduction
Just as refuelling a conventional car is a key part of driving a petrol or diesel vehicle, charging an EV, is a key element in driving an electric car. For those new to electric driving, EV charging may seem daunting, however, in reality, charging an electric car, like the all-electric Jaguar I-PACE, is relatively straightforward, and in many way, as simple as charging a smartphone!
Broadly, there are two ways to charge an electric car: AC EV charging or DC EV charging. In general, home EV charging is AC EV charging, and public charging stations are DC fast charging. Of course, some public charging stations are also AC EV charging.
All the power supplied by the grid is AC power (Alternating Current). These include, residential dwellings, office buildings, factories etc. However, all the energy stored in an EV battery has to be converted to DC (Direct Current). In the case of AC electric car charging, the conversion from AC to DC takes place within the electric vehicle (EV) via a converter, more often referred to as an onboard AC charger.
Both, battery-electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs), incorporate an onboard AC charger. Most PHEVs incorporate a single-phase AC charger, while BEVs incorporate, either a single-phase or three-phase onboard charger. As an example, the pure electric BMW i7 saloon, incorporates a 3-phase (11 kW) AC onboard charger. While the Jaguar E-PACE Plug-In Hybrid SUV incorporates a single-phase (7 kW) AC onboard charger.
Of course, a 3-phase onboard AC charger, will charge at faster charging speeds. Most home electric car chargers in India will be single-phase (7 kW), as the power supplied to homes in India is single-phase. However, commercial and office buildings usually offer 3-phase electric car AC chargers (11 kW – 22 kW), as commercial buildings are powered by three-phase power supply.
Apart from the above, also developing in India is the fast/ rapid DC EV charging infrastructure. DC EV chargers offer significantly faster charging speeds, compared to AC charging. The reason this is possible, is because, DC chargers ‘convert’ AC to DC within the DC EV charger, and therefore are not limited by the onboard AC charger incorporated in an electric vehicle (EV). DC charging usually varies between 50 kW DC to 250 kW DC. However, also under development are 350 kW DC chargers.
In general, most EVs that offer DC charging capability, can be charged between 10% – 80% within 30 minutes. In sharp contrast, single-phase AC EV chargers usually take between 7 – 12 hours to charge an electric car. Three-phase EV charging is faster, and usually between 4 to 7 hours. Yes, an electric car can be charged via a standard household domestic socket. It usually take between 25 to 30 hours to charge an EV. We at e-zoomed discourage the use of a domestic socket for charging an electric car. Using a smart residential EV charger, is both, faster and safer, for charging an EV.
AC EV Charging | DC EV Charging |
---|---|
More common in residential dwellings, but also used for non-residential buildings (offices etc) | Mostly used for public charging destinations |
Slower charging speeds (3 kW – 43 kW) | Faster charging speeds (50 kW DC – 350 kW DC) |
AC power is converted to DC within the electric vehicle via an onboard converter | AC power is converted to DC power within the DC EV charger |
Lower acquisition and maintenance costs | Higher acquisition and maintenance costs |
Lower charging costs | Higher charging costs |
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