Honda Media Newsroom CRZ 2011 Honda CRZ Powertrain

28 мая 2014 | Author: | Комментарии к записи Honda Media Newsroom CRZ 2011 Honda CRZ Powertrain отключены
Honda CR-V Hybrid

Honda Automobiles

Performance and enjoyment can often be viewed as elements to good fuel and low emission levels. The challenge of the powertrain development team was to this traditional trade-off performance and the environment by developing an that could satisfy a new era of conscious enthusiast drivers. As the sport hybrid coupe for retail sale in North the all-new CR-Z is intended to how green technology can also be fun and

Powertrain Highlights

1.5-liter 16-valve i-VTEC 4-cylinder with Integrated Motor (IMA)

High-power, lightweight, hybrid electric motor

compact and durable Intelligent Unit (IPU)

New 3-mode system with Sport, and Econ modes

Six-speed transmission (first ever for a or available CVT

Now in its sixth unique since debuting on the original Insight, the compact and simple-in-concept Motor Assist (IMA) is a parallel hybrid powertrain increases efficiency through the motor’s power assist, regeneration and idle-stop capabilities. The 1.5-liter, 4-cylinder, 16-valve gasoline engine serves as the power source and is designed to driver enjoyment with its performance, a broad torque and enthusiastic engine note. A ultra-thin electric motor in tandem with the gasoline to provide additional power and generation as needed.

Electricity is and delivered through a lightweight and 100.8-volt battery and power system.

The hybrid-electric motor’s torque band with torque at low RPM is designed to complement the standard six-speed manual particularly well in city The broad torque band to sporty acceleration and reducing the to shift as frequently in order to within the engine’s power (compared to conventional gasoline-engine

A Continuously Variable Transmission is available and offers elevated of fuel economy. A driver-selectable drive system allows the to be operated in Sport, Normal or mode to help maximize performance or economy. Sport enhances the power delivery from the IMA system.

Eco Assist and Eco are provided as driver efficiency tools with real-time and feedback to economical driving

Combined, the gasoline engine and motor produce a peak of 122 horsepower at 6,000 RPM and 128 lb-ft. of at 1,000 to 1,750 RPM on manual models (123 lbft at to 2,000 on CVT-equipped models). the gasoline engine produces 113 (84 kW) @ 6,000 RPM and 107 lb-ft. (144 meters) of torque at 4,800 The electric motor can add a maximum of 13 (10 kW) @1,500 RPM and 58 lb-ft. of torque at RPM.

The peak outputs for the gasoline and the electric motor occur at RPM ranges, resulting in a broad curve and a wider range of than a similar-sized, conventional vehicle or an electric-only vehicle.

Measurement of Combined Horsepower and in Hybrid Powertrains Since the output for the CR-Z’s gasoline and electric motor occur at different RPM ranges, the combined for horsepower and the combined rating for represent the operational capability at the output shaft when the two are functioning together as a single Therefore, combined power for Honda hybrid vehicles peak power delivery in operating conditions and take account the unique RPM when peak occurs. The combined numbers do not represent the simple of the peak numbers for the gasoline and electric motor.

This method is why 112 horsepower (gasoline plus 13 horsepower (electric equals a combined output of 122 (not 125 horsepower combined).

16-valve SOHC i-VTEC Engine

The CR-Z’s 1.5-liter all-aluminum engine offers a between high fuel and funto- drive performance. The displaces 1,497 cc and has a 10.4:1 ratio. The underbore design has a and stroke measuring 73 mm x 89 mm, respectively.

The i- VTEC cylinder head a narrow, 30- degree design the intake and exhaust valves, to the engine’s overall compact Friction-reducing technologies include tipped rocker arms, a timing chain tensioner, piston skirts and an offset and connecting rod design.


Part of the balance between and power is made possible by i- VTEC variable valve system. In the CR-Z’s 16-valve engine, the i- VTEC system a two-rocker arm design (per on the intake valves) with roller followers for each of intake valves, along intake cam lobes configured to both low- and highspeed A chain drive connects the to the camshaft.

Depending on engine and RPM, an electronic controller which cam profile will be and exactly how the intake valves operate.

At low RPM, where low and shorter duration provide operation, the timing of the two intake is staggered and the lift asymmetrically in favor of the primary valve. helps to create a swirl within the combustion chamber increases the efficiency of the burn Above approximately 2,300 a hydraulically actuated spool causes a locking pin to engage the rocker arm with the primary transitioning the secondary valve a long-duration mode that the volume of air/fuel mixture into the combustion chamber.

The additional air/fuel mixture increase power at high

Compact Intake Manifold

The and compact composite intake provides sufficient clearance for the low hood while still enough clearance for Honda’s standards for pedestrian protection.

Drive-by-Wire Throttle Control

optimizing the ratio of movement the throttle pedal and the throttle valve in the intake manifold, optimizes engine response and IMA to match driving conditions and expectations for throttle input. The uses a highly responsive DC to change the throttle position and precisely.

Programmed Fuel (PGM-FI)

The Programmed Fuel (PGM-FI) is a lightweight, compact that ensures optimal ratio by monitoring throttle engine temperature, intake-manifold intake-air mass flow, pressure, exhaust-gas oxygen and intake-air temperature to control delivery via four multi-holed mounted in the intake port of the head.

Direct Ignition with Dual-Probe Spark

The CR-Z has a direct ignition with a coil unit for cylinder, positioned within spark plug’s access The CR-Z uses dual-probe plugs for faster mixture speed and improved combustion With the spark arcing beyond the relatively large of the ground area, the air/fuel is exposed to a larger portion of the which enhances stable

Maintenance Minder System and Intervals

The Maintenance Minder™ calculates the engine’s tune-up based on driving conditions by the Powertrain Control Module. determining proper maintenance the system minimizes owner about whether the vehicle is operated in standard or severe The Maintenance Minder information in the Multi- Information Display, and when to change the oil, oil (every other oil change), air transmission fluid, spark and coolant, as well as when to the tires.

A tune-up is not required 100K+/- Miles No Scheduled

*May vary with conditions. Does not apply to and filter changes. Exact is determined by actual driving The owner’s manual contains detail.

Noise, Vibration and Reduction

A subframe torque rod system reduces engine and helps to isolate powertrain and vibration from the passenger Hydraulic engine mounts and in the engine compartment help to reduce engine noise and for a more comfortable ride.

Sport-Tuned Exhaust System

The exhaust system has been to express a sporty performance note that increases and proportionally with increasing speed. Typically, the exhaust of a performance-oriented car sounds most in the mid-range audio frequencies. are often perceived as desirable to low frequencies or high frequencies can convey undesirable noise like drumming noise or noise during idling or conditions.

The CR-Z’s exhaust achieves its sporty sound by coordinating the exhaust frequency produced by the muffler with the body’s resonate properties.

approach prevents certain, sounds from entering the while desirable sounds are inside. Contributing to the sporty the layout of the resonator chambers the muffler is divided into expansion chambers by separator connected by pipes, which small holes that exhaust gas to flow through. gas flows through these chambers it emits sound to the length and diameter of the pipes.

idle to 3000 RPM, the CR-Z would typically under normal driving, the expresses a distinct-yet-subtle exhaust that suggests power. The of second order booming at low engine speed is reduced, leaves the most-desirable aspects of the note, the 4th order exhaust as the most-prominent vehicle operation inside the cabin. At higher the exhaust note has been to coordinate with the frequencies to the vehicle’s body.

Unwanted frequencies have been by calibrating the noise-insulating properties of the mounts and by using conventional material throughout the vehicle.

measures have been to tune the exhaust note for manual-transmission models and the CVT models due to the gearing principles, and subsequently engine speeds at a given The manual transmission and the CVT each unique expansion chamber that have been to achieve a good sound for versions.

Fuel Economy and

EPA-estimated fuel economy is at 35/39/37 city/highway/combined miles per 3 on CVT-equipped models. Manual models are EPA-rated at 31/37/34 miles per gallon 3. The CR-Z is as an Advanced Technology Partial Emissions Vehicle (AT-PZEV) in that adhere to California Air Board (CARB) ZEV standards Tier 2, Bin 2 in all states). Low emissions are a key of every Honda engine, and the employs an oblique flow converter (increases contact of exhaust gas inside catalyst), steel exhaust pipes warm up, good heat and low weight) and a conventional exhaust gas system (re-routes part of the gas back into the intake air mixture).

To keep operating costs at a the CR-Z is designed to use regular fuel.

Integrated Motor (IMA) Overview

As with versions, the IMA system consists of an DC brushless electric motor between the gasoline engine and the and an Intelligent Power Unit that stores electric in a compact battery box and controls the of electricity to and from the electric

10 kW DC Brushless Electric Motor

The DC brushless electric motor up to 13 hp (10 kilowatts) @ 1,500 RPM and 58 lb-ft. of @ 1,000 RPM to the CR-Z gasoline output, assisting primarily in and some steady-state cruising The motor also acts as a during braking, some cruising, gentle deceleration and to capture kinetic energy and the battery. The ultra-compact electric measuring 61 mm in case width, is between the engine and transmission on manual transmission models), and is an AC three-phase electric motor.

Power Unit (IPU) Nickel Metal Hydride Pack

The Intelligent Power (IPU) controls the power of the IMA The IPU contains the energy storage (battery), Power Control (PCU), motor Electric Unit (ECU), and a compact cooling system. The IPU is located the rear cargo area for impact on interior space.

The metal hydride (Ni-MH) system consists of seven that send power to the motor as it assists the engine. It stores the electricity when the generates electricity during braking. The seven-module battery is comprised of 84 individual D-sized cells for a total battery output of 100.8 volts and a of 5.75 ampere-hours.

IMA System

The CR-Z’s regenerative braking apportions braking power in a fashion between the hydraulic and the electric motor, allowing the IMA to extract electricity from the kinetic energy at a pre-set During braking, a braking sensor sends a signal to the which engages the regenerative via the electric motor performing as a The linear aspect of the braking results in a firm, direct consistent with a sporty

Automatic Idle Stop

The automatically turns off the gasoline during complete stops normal operating conditions. feature allows the vehicle to use less fuel and emit emissions than a conventional The system uses the IMA electric to restart the engine.

When the air conditioner is in use, Econ mode can increase the for the idle-stop feature to keep the deactivated for a longer duration of under certain conditions.

Drive System

The CR-Z’s drive system allows the to select between individual of performance for Sport, Normal and driving styles. The system is via three backlit buttons to the of the steering wheel.

The Sport enhances multiple vehicle for performance including the engine responsiveness, electric power effort, the electric motor assist and CVT (available) gear The inner ring of the tachometer red when the vehicle is in Sport

Pushing the Sport Mode influences the following systems to Normal Mode):

Additional IMA power available during (exclusive to 6MT model)

Steering becomes firmer and more

DBW throttle angle optimized for acceleration feel

CVT (if equipped) ratios are optimized lower to higher engine RPM and quicker

A/C operates normally


Normal mode provides settings for steering, engine motor assist and air conditioning. to Econ mode, the tachometer transitions between blue and when the vehicle is in normal with the green representing efficient driving. At startup the will default to Normal if the vehicle was previously driven in mode.

Steering assist is

DBW throttle angle optimized for acceleration feel

CVT (if equipped) ratios are optimized for greater

A/C operates normally

During mode operation, the engine’s is tuned for optimal economy, the motor assist gives to fuel efficiency and the air conditioning can reduce its overall load on the

Pushing the Econ button a range of functions that the fuel economy of the CR-Z’s Motor Assist (IMA)

DBW throttle angle optimized for acceleration and maintains lowest engine RPM

Reduces automatic control blower fan speed and A/C compressor engagement whenever

CVT (if equipped) transmission ratios are higher (relative to engine for greater economy

Limits and torque by approximately 4 percent responsiveness is provided at wide-open-throttle)

control uses a smaller opening angle whenever

Steering assist is normal

Drive Assist (Eco

The Ecological Drive Assist (Eco Assist™) is a fuel information system designed to the driver develop and maintain a driving style. The system driving style, and can display the of a driving style on the vehicle’s economy. The system also feedback that can help the make adjustments to driving The system guides drivers in and braking in ways that less fuel, and in taking advantage of regenerative braking.

Using these tools, the can achieve improved fuel performance.

The feedback provided by Eco simply and effectively helps accelerate and brake in ways to enhanced fuel economy. activities like smooth and braking make the inner glow green. Somewhat driving makes the meter blue-green.

Aggressive starts and that consume extra make the meter glow By observing the inner ring’s to driving practices and seeking to a consistently green color, can receive assistance in developing habits that typically fuel economy.


The Maintenance Minder™ system the engine’s tune-up schedule on driving conditions (tracked by the When determining proper intervals, the system minimizes guesswork about whether the is being operated in standard or conditions. The CR-Z’s Maintenance system information appears in the Information Display (MID) and when to change the oil, oil (every other oil change), air transmission fluid, spark engine coolant, as well as to rotate the tires.

A tune-up is not until about 100,000 (Note: 100K+/- Miles No Tune-ups may vary with conditions. Does not apply to and filter changes. Exact is determined by actual driving The owner’s manual contains details.) Long-life fluids been used for reduced impact (fluid disposal) and maintenance costs.

As a result, coolant changes are needed every 10 years or approximately miles, and engine oil changes are around 7,500 miles normal driving conditions, or if fewer miles are driven per

Transmissions Overview

CR-Z Ratios

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