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Electric scooter, what it is, how does it work, batteries, ...

Dec. 09, 2024

Electric scooter, what it is, how does it work, batteries, ...

Electric scooters are two-wheeled vehicles powered by electric engines that combine the iconic design of a motor-cycle or scooter with the efficiency and sustainability of electric propulsion.  Electric scooters are an increasingly popular option for urban mobility, offering a clean and efficient alternative to traditional internal combustion vehicles.

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How does an electric scooter work?

The engine of an electric scooter works differently from internal combustion engines. Instead of burning fuel, electric scooters use a motor that converts the electric power of the battery into mechanical energy to drive the rear wheel. For this purpose, electronic controllers fitted to the handlebar grip are used to regulate the power delivered to the engine, according to the driver&#;s orders. When the driver turns the accelerator grip, the controller increases the power supplied to the motor, which speeds up the scooter. Some electric scooters have regenerative braking systems that turn part of the kinetic energy produced when the driver applies the brakes into electricity that recharges the battery.

What type of battery is used for electric scooters?

The autonomy of an electric scooter depends on the battery capacity. Lithium-ion batteries are currently the most common. Autonomy typically varies from about 40 km to more than 100 km with a single charge, depending on the model and driving conditions, including the speed chosen, the number of times the scooter stops, the weight of the vehicle and the driver, the gradient of the terrain, the temperature of the environment and other factors.

What are the advantages of electric scooters for urban mobility?

One of the biggest benefits of electric scooters is their low environmental impact. They do not emit any pollutant gases or harmful particles and contribute to reducing air pollution in urban areas.

Another notable feature of electric scooters is that their engines are extremely quiet and do not generate vibrations, producing considerably less noise pollution than their combustion engine counterparts.

Electric scooters have lower operating costs than gasoline-powered vehicles, because, depending on the method by which it is produced, electricity tends to be cheaper than gasoline. Moreover, electric motors require less maintenance than combustion engines.

Because of their characteristics, electric scooters are ideal vehicles for scooter sharing. This is a system for hiring vehicles with payment per hour or per minute to meet the need for a single journey. In many cities, the fleets of shared vehicles, parked on public roads or at specific pick-up points and available for rental through a mobile app, have increased substantially. This form of transport is a more sustainable alternative than the purchase of a vehicle by each user.

What is the difference between this type of scooter and a simple e-scooter?

The term &#;electric scooter&#; can cause confusion in English, as it refers both to a small electric motorbike and a motorized kick scooter with a platform the rider stands on. The latter have become popular in recent years as an alternative form of urban transport. They are light and compact, with a handlebar for steering and a braking system. The motor is located in the base of the platform and is powered by a rechargeable battery. The rider accelerates or brakes using a lever on the handlebar.

Although both electric vehicles have two wheels positioned one before the other, the first serving to steer the vehicle, which remains upright while the driver is traveling, the design and driving position is the most obvious difference between these two types. The basic scooter consists of a narrow horizontal platform that is close to the ground, on which the user normally stands while holding the handlebar, which is attached vertically to the front of the platform. Bike-style electric scooters provide greater comfort.   Their design is based on a normal bike, with an open frame, a comfortable seat and a platform to rest your feet on. The wheels of this type of vehicle are usually smaller than those of conventional motorcycles, but larger than those of kick scooters.

The other major difference is power and autonomy. Basic electric scooters are designed to cover urban distances up to about 20 km, while the autonomy of bike-style scooters usually exceeds 80 km.

TRACER 9 GT+ - Key Features

TRACER 9 GT+

KEY FEATURES

TOP FEATURES

Integrated KYB® Semi-Active Suspension

The most advanced electronic control technology found on any production Yamaha motorcycle, the new generation KADS (KYB® Actimatic Damper System) electronically controlled suspension system has been developed jointly with KYB® to provide exciting sports performance together with an extremely comfortable ride. Governed by the 6-axis IMU which monitors various sensors and constantly adjusts damping forces to suit prevailing riding conditions. The semi-active suspension also operates in conjunction with the Adaptive Cruise Control and Unified Brake System.

New Adaptive Cruise Control

TRACER 9 GT+ is the first Yamaha motorcycle to be equipped with Adaptive Cruise Control (ACC). The system automatically controls cruising speed, deceleration and acceleration to match the speed of the vehicle in front and maintain constant following distance, based on four adjustable pre-sets, making highway riding smoother and more comfortable.

New High Luminosity TFT Display

A new seven-inch full-color TFT meter features a high luminosity display for rich, clear easy-to-read information on real-time running conditions. Riders have the choice of three different screen layouts, each with its own distinctive style to match individual preferences and riding conditions. A USB-A outlet is also provided below the meter for smartphone connection.

New Radar-Linked Unified Brake System

For a high degree of stability and control, the Unified Brake System incorporates a hydraulic unit that automatically distributes braking force from rider inputs to both wheels in an unobtrusive way. The Tracer 9 GT+ is the world&#;s first motorcycle to adopt an innovative new radar-linked system that assists the rider&#;s braking input when required and adjusts front/rear braking bias when the distance to the vehicle in front closes to a certain level. The system will only provide braking assistance when the Brake Control is turned ON and the rider is braking&#;it is not a collision avoidance system. Additionally, the system includes cornering brake control which automatically adjusts braking force to inhibit tire slippage when the machine is leaned over.

New Third Generation Quickshifter

Yamaha&#;s third generation quickshifter enables quick, clutchless up and down gear changes during both acceleration and deceleration allowing a wider range of functionality and more flexibility in your riding style. It also works in conjunction with the new Adaptive Cruise Control allowing riders to change gears without disengaging Cruise Control.

Powerful 890cc Liquid-Cooled Three-Cylinder DOHC Fuel-Injected Engine

The Tracer 9 GT+ features the world-renowned crossplane crankshaft 890cc CP3 engine. With a bore × stroke of 78 mm × 62.1 mm and an 11.5:1 compression ratio, it provides the type of broad, linear torque and thrilling power delivery character that's perfect for Sport Touring.

Six-Axis IMU

The Tracer 9 GT+ features an advanced six-axis Inertial Measurement Unit (IMU). The engine control unit (ECU) receives and reflects data from the IMU and is equipped with three rider aids: a Traction Control System (TCS), Slide Control System (SCS) and the front-wheel LIFt control system (LIF). The Brake Control System is controlled by the Hydraulic Control Unit (separate unit from ECU) which modulates front and rear brake pressure based on data from the IMU as well as the front and rear wheel speed sensors. All three systems work together to help the rider concentrate on better extracting the machine&#;s potential. Each of the systems can also be turned on or off and have their levels of intervention adjusted to preference.

The Revolutionary Yamaha Sport Tourer

The flagship of Yamaha's Sport Touring range, the new Tracer 9 GT+ is a technological juggernaut offering a level of sophistication unmatched in its class. It starts with the new Millimeter Wave Radar which detects distance of vehicles ahead, enabling groundbreaking radar-linked Adaptive Cruise Control and Unified Brake Systems. Additional features like the KYB semi-active suspension, integrated riding modes, lean-sensitive rider aids, new smartphone connectivity with fullscreen Garmin navigation, new third-generation quickshifter and a host of other advanced features ensure comfort and capability nothing else in its price category can touch.

ADDITIONAL FEATURES

Dedicated Colorway & Premium Finish

To underline its position as Yamaha's ultimate Sport Tourer, the Tracer 9 GT+ is offered in a premium two-toned Storm Gray color scheme employing a hand masked split-paint design to enhance the powerful body design and premium quality.

Full LED Lighting with Cornering Lights

Lighting is a full LED system, and Yamaha&#;s sophisticated cornering lights are standard equipment on the Tracer 9 GT+. When lean angle exceeds seven degrees, the cornering lights automatically illuminate the inside of the turn&#;whether low or high beam is being used&#;giving a larger illuminated area of road.

The Complete Touring Package

As standard the TRACER 9 GT+ is equipped with a large 10-level adjustable windscreen, fully integrated 10-stageadjustable heated grips, touring hard cases mounted to stays with built-in dampers to reduce vibration, LED lighting including cornering lights and a center stand.

CHASSIS/SUSPENSION

Adjustable Riding Position

The riding position was designed to accommodate riders of varying physiques and includes a two-level adjustable main seat. The handlebars and footpegs can also be adjusted to two different positions, allowing riders to set a position that gives them a secure feeling the moment they get on the bike. The handlebar clamps can be rotated 10mm forward changing the bar position 9mm forward and 4mm up, and the footpeg mounts can be raised 14mm higher as well as 4mm rearward.

Integrated KYB® Semi-Active Suspension

The most advanced electronic control technology found on any production Yamaha motorcycle, the new generation KADS (KYB® Actimatic Damper System) electronically controlled suspension system has been developed jointly with KYB® to provide exciting sports performance together with an extremely comfortable ride. Governed by the 6-axis IMU which monitors various sensors and constantly adjusts damping forces to suit prevailing riding conditions. The semi-active suspension also operates in conjunction with the Adaptive Cruise Control and Unified Brake System.

Lightweight CF Aluminum Die-Cast Frame

To achieve both sporty performance and excellent riding comfort, the Tracer 9 GT+ adopts a lightweight aluminum frame with model-specific tuning. Using Yamaha's exclusive Controlled Filling (CF) aluminum die-casting technology, this frame features the thinnest sections ever on a Yamaha die-cast frame.

Lightweight Spin Forged Aluminum Wheels

Manufactured using Yamaha-exclusive spin forging technology, the Tracer 9 GT+'s lightweight wheels decrease in the momentum of inertia at the rear by 11%, contribute to its agile handling character.

Lightweight, High-Rigidity Swingarm

The Tracer 9 GT+ features a swingarm that is located inside of the frame. It has a boxed construction formed by welding together aluminum plates. The swingarm helps achieve both high rigidity and lighter weight, conveying the feeling of drive force to the rider and aiding with excellent traction at high speeds and when cornering.

New Radar linked Unified Brake System

For a high degree of stability and control, the Unified Brake System incorporates a hydraulic unit that automatically distributes braking force from rider inputs to both wheels in an unobtrusive way. The Tracer 9 GT+ is the world&#;s first motorcycle to adopt an innovative new radar-linked system that assists the rider&#;s braking input when required and adjusts front/rear braking bias when the distance to the vehicle in front closes to a certain level. The system will only provide braking assistance when the Brake Control is turned ON and the rider is braking&#;it is not a collision avoidance system. Additionally, the system includes cornering brake control which automatically adjusts braking force to inhibit tire slippage when the machine is leaned over.

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Nissin Radial Front Brake Master Cylinder

To provide excellent controllability, Tracer 9 GT+ features a radial Nissin master cylinder for the front brake. The piston in the master cylinder moves in a direction parallel to brake lever travel, contributing to a more linear supply of hydraulic pressure for excellent control and feel.

Premium Height Adjustable Seat

The height adjustable seat supports long riding days featuring dense foam padding, enhanced comfort shape and a premium leather-style cover with high quality embossing and stitching to reflect its position as Yamaha's flagship Sport Tourer.

Strong Steel Subframe

The strong steel subframe ensures excellent straight-line stability and cornering ability, even when outfitted with a large fuel tank and three hard rear luggage cases.

ELECTRONICS

Integrated Riding Modes

The Tracer 9 GT+ benefits from a refined D-Mode (engine character selection) that is now fully integrated with the machine&#;s 6-Axis IMU and comprehensive suite of lean-sensitive rider aids. This new system is more intuitive and easier to use on-the-fly. The rider has the option to select one of four integrated riding mode options&#;Sport/Street/Rain/Custom&#;all of which work in conjunction with the engine character selection (D-mode), the Traction Control, Slide Control, Lift Control and the electronic suspension&#;s damping control to ensure enhanced control in a wide variety of riding situations.

Lean Angle-Sensitive Traction Control System

The Traction Control System (TCS) detects the difference in speed between the front and rear wheels and helps to efficiently extract drive force from the rear tire during acceleration. The TCS on the Tracer 9 GT+ uses this data for the lean angle, estimated by the IMU to adjust the degree of intervention by the TCS. As the lean angle increases, so does the amount of TCS intervention (1 = little intervention; 2 = moderate intervention; 3 = strong intervention).

Lift Control System (LIF)

The LIFt Control System (LIF) intervenes when the IMU predicts front-wheel lift to adjust the engine's output to compensate and assist the rider. On the Tracer 9 GT+, the system settings are focused on providing smooth behavior once the intervention ceases. The LIFt system&#;s intervention is set up to work together with the other rider aids, and with Mode M, the level of intervention can be chosen manually by the rider.

MotoGP®-Developed Slide Control System (SCS)

The Tracer 9 GT+ features the Slide Control System (SCS), just like the one on the acclaimed YZF-R1. When the IMU predicts that a sideward slide is occurring at the rear tire, the SCS responds by adjusting the power output to help the rider focus on riding. The degree of intervention is pre-set for the TCS with Mode 1 and Mode 2, but Mode M allows for the level of intervention to be selected or for the system to be turned off.

New Adaptive Cruise Control

TRACER 9 GT+ is the first Yamaha motorcycle to be equipped with Adaptive Cruise Control (ACC). The system automatically controls cruising speed, deceleration and acceleration to match the speed of the vehicle in front and maintain constant following distance, based on four adjustable pre-sets, making highway riding smoother and more comfortable.

New High Luminosity TFT Display

A new seven-inch full-color TFT meter features a high luminosity display for rich, clear easy-to-read information on real-time running conditions. Riders have the choice of three different screen layouts, each with its own distinctive style to match individual preferences and riding conditions. A USB-A outlet is also provided below the meter for smartphone connection.

New Radar-Linked Unified Brake System

For a high degree of stability and control, the Unified Brake System incorporates a hydraulic unit that automatically distributes braking force from rider inputs to both wheels in an unobtrusive way. The Tracer 9 GT+ is the world&#;s first motorcycle to adopt an innovative new radar-linked system that assists the rider&#;s braking input when required and adjusts front/rear braking bias when the distance to the vehicle in front closes to a certain level. The system will only provide braking assistance when the Brake Control is turned ON and the rider is braking&#;it is not a collision avoidance system. Additionally, the system includes cornering brake control which automatically adjusts braking force to inhibit tire slippage when the machine is leaned over.

Ride-by-Wire YCC-T Throttle System with APSG

The Tracer 9 GT+'s Yamaha Chip Controlled Throttle (YCC-T) and Accelerator Position Sensor Grip (ASPG) ride-by-wire unit provides exceptional throttle feel. With the APSG, the degree of throttle opening is detected by a sensor and magnet and reflected with signals to the throttle valve motor. For good operational feel, the APSG is comprised of a spring, slider and gear and produces varying degrees of friction (resistance) to recreate a natural throttle feel during use.

Six-Axis IMU

The Tracer 9 GT+ features an advanced six-axis Inertial Measurement Unit (IMU). The engine control unit (ECU) receives and reflects data from the IMU and is equipped with three rider aids: a Traction Control System (TCS), Slide Control System (SCS) and the front-wheel LIFt control system (LIF). The Brake Control System is controlled by the Hydraulic Control Unit (separate unit from ECU) which modulates front and rear brake pressure based on data from the IMU as well as the front and rear wheel speed sensors. All three systems work together to help the rider concentrate on better extracting the machine&#;s potential. Each of the systems can also be turned on or off and have their levels of intervention adjusted to preference.

ENGINE

Advanced Intake Resonance

The Tracer 9 GT+ employs an advanced intake system designed to perfectly suit the powerful CP3 engine, providing linear response when the rider opens and closes the throttle. The three intake ducts also contribute to the excellent engine sound at midrange and high rpm. These ducts are designed with different cross sections and lengths so that the intake sounds they produce individually resonate harmoniously at varying wavelength ranges. At the same time, the sound pressure has also been tuned to create a pleasing sound in the mid- and high-rpm range. The result is an air cleaner box that achieves both good intake efficiency and an enjoyable sound.

Assist & Slipper Clutch

The Tracer 9 GT+ features an Assist and Slipper (A&S) clutch for a lighter clutch lever pull and smoother chassis behavior during downshifts.

Fracture-Split Connecting Rods

The forged connecting rods are made using the fracture-split method&#;where the big-end ring of the connecting rod is purposefully fractured and then reassembled&#;to ensure an unparalleled degree of manufacturing accuracy. This creates a pair of perfectly matching halves that produce a much more precise mating surface when the rods are bolted together again around the crankshaft.

Lightweight Forged Pistons

Superior quality lightweight forged pistons allow for smooth, high-revving power.

New Third Generation Quickshifter

Yamaha&#;s third generation quickshifter enables quick, clutchless up and down gear changes during both acceleration and deceleration allowing a wider range of functionality and more flexibility in your riding style. It also works in conjunction with the new Adaptive Cruise Control allowing riders to change gears without disengaging Cruise Control.

Offset & Direct-Plated Cylinders

The CP3 engine mounts its three cylinder bores forward, towards the exhaust side. This offset reduces the piston to cylinder wall friction, creating more power and improved fuel economy while the direct-plated ceramic-composite cylinder bores provide excellent heat dissipation and reduced friction.

Optimized Transmission Ratios

The transmission ratios have been optimized, with the gear ratios for 1st and 2nd gear slightly higher than on previous models (1st gear: from 2.666 to 2.571; 2nd gear: from 2.000 to 1.947). Working in combination with the increased momentum of inertia of the crankshaft and the fuel injection settings, the transmission provides the right balance of a powerful torque feeling and ease of use, from acceleration to stopping.

Powerful 890cc Liquid-Cooled Three-Cylinder DOHC Fuel-Injected Engine

The Tracer 9 GT+ features the world-renowned crossplane crankshaft 890cc CP3 engine. With a bore × stroke of 78 mm × 62.1 mm and an 11.5:1 compression ratio, it provides the type of broad, linear torque and thrilling power delivery character that's perfect for Sport Touring.

TOP FEATURES

Advanced Smartphone Connectivity

Enabled through Yamaha's free MyRide-Link app, riders can now connect their smartphone directly to the Tracer 9 GT+. Access music, make and receive calls (through use of an aftermarket Bluetooth® headset, not provided), access weather reports, view text notifications and access a range of additional features all operated by an intuitive new joystick on the left handlebar switchgear and displayed in rich, full color on the new seven-inch high-luminosity TFT meter. Additionally, by downloading the Garmin® Motorize app, riders can also access fullscreen turn-by-turn navigation on the TFT display.

*Manufacturer's Suggested Retail Price (MSRP) shown. Does not include tax, title, prep or destination charges. Actual prices set by dealer.
**Fuel Economy is estimated.
***Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is useful in making real-world comparisons with other models.

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