They often take too much of the driving experience away because the computer decides which motor to use to save fuel. Not so the Honda CR-Z.
But the Honda CR-Z hybrid system is different because the electric motor is more of an assistant to the engine. The battery pack beneath the boot floor is charged by regenerative braking and then sends power to the integrated electric motor that provides an extra bit of shove to the wheels when you need it. The engine also utilises a start-stop system to switch off the engine in traffic to cut emissions and help increase fuel economy.
Eco Assist and Eco Score are provided as driver efficiency tracking tools with real-time and cumulative feedback to economical driving styles. Combined, the gasoline engine and electric motor produce a peak output of horsepower at 6, RPM and lb-ft.
Individually, the gasoline engine produces horsepower 84 kW 6, RPM and lb-ft. The electric motor can add a maximum of 13 horsepower 10 kW 1, RPM and 58 lb-ft. The peak outputs for the gasoline engine and the electric motor occur at different RPM ranges, resulting in a broad power curve and a wider range of performance than a similar-sized, conventional gasoline-powered vehicle or an electric-only vehicle.
Background: Measurement of Combined Horsepower and Torque in Hybrid Powertrains Since the peak output for the CR-Z's gasoline engine and electric motor occur at significantly different RPM ranges, the combined rating for horsepower and the combined rating for torque represent the operational capability measured at the output shaft when the two systems are functioning together as a single system.
Therefore, combined power ratings for Honda hybrid vehicles represent peak power delivery in real-world operating conditions and take into account the unique RPM when each peak occurs.
The combined power numbers do not represent the simple addition of the peak numbers for the gasoline engine and electric motor. This calculation method is why horsepower gasoline engine plus 13 horsepower electric motor equals a combined output of horsepower not horsepower combined. The engine displaces 1, cc and has a The underbore design has a bore and stroke measuring 73 mm x 89 mm, respectively. The compact i- VTEC cylinder head utilizes a narrow, degree design between the intake and exhaust valves, contributing to the engine's overall compact size.
Friction-reducing technologies include roller-bearing tipped rocker arms, a low-friction timing chain tensioner, molybdenum-coated piston skirts and an offset crankshaft and connecting rod design. Part of the balance between efficiency and power is made possible by Honda's i- VTEC variable valve timing system. In the CR-Z's valve SOHC engine, the i- VTEC system employs a two-rocker arm design per cylinder on the intake valves with friction-reducing roller followers for each pair of intake valves, along with intake cam lobes configured to optimize both low- and highspeed operation.
A chain drive connects the crankshaft to the camshaft. Depending on engine load and RPM, an electronic controller determines which cam profile will be used and exactly how the intake valves will operate. At low RPM, where low lift and shorter duration provide optimal operation, the timing of the two intake valves is staggered and the lift asymmetrically skewed in favor of the primary valve. This helps to create a swirl effect within the combustion chamber that increases the efficiency of the burn process.
The lightweight and compact composite intake manifold provides sufficient clearance for the CRZ's low hood while still maintaining enough clearance for Honda's internal standards for pedestrian protection. Continuously optimizing the ratio of movement between the throttle pedal and the throttle butterfly valve in the intake manifold, Drive-by-Wire optimizes engine response and IMA operation to match driving conditions and driver expectations for throttle input.
The system uses a highly responsive DC motor to change the throttle position quickly and precisely. The Programmed Fuel Injection PGM-FI is a lightweight, compact system that ensures optimal air-fuel ratio by monitoring throttle position, engine temperature, intake-manifold pressure, intake-air mass flow, atmospheric pressure, exhaust-gas oxygen content and intake-air temperature to control fuel delivery via four multi-holed injectors mounted in the intake port of the cylinder head.
The CR-Z has a direct ignition system with a coil unit for each cylinder, positioned within each spark plug's access bore. The CR-Z uses dual-probe spark plugs for faster mixture ignition speed and improved combustion stability. When determining proper maintenance intervals, the system minimizes owner guesswork about whether the vehicle is being operated in standard or severe conditions. The Maintenance Minder information appears in the Multi- Information Display, and indicates when to change the oil, oil filter every other oil change , air cleaner, transmission fluid, spark plugs and coolant, as well as when to rotate the tires.
Does not apply to fluid and filter changes. Exact mileage is determined by actual driving conditions. The owner's manual contains full detail. A subframe torque rod damper system reduces engine rocking and helps to isolate powertrain noise and vibration from the passenger compartment. Hydraulic engine mounts and reinforcements in the engine compartment help to further reduce engine noise and vibration for a more comfortable ride.
The CR-Z's exhaust system has been designed to express a sporty performance character note that increases smoothly and proportionally with increasing engine speed. Typically, the exhaust note of a performance-oriented car sounds most impressive in the mid-range audio frequencies. Mid-frequencies are often perceived as desirable compared to low frequencies or high frequencies that can convey undesirable noise - like drumming noise or road noise during idling or cruising conditions.
The CR-Z's exhaust system achieves its sporty sound by closely coordinating the exhaust frequency orders produced by the muffler with the vehicle body's resonate properties.
This approach prevents certain, undesirable sounds from entering the cabin while desirable sounds are allowed inside. Contributing to the sporty note, the layout of the resonator chambers inside the muffler is divided into several expansion chambers by separator walls connected by pipes, which have small holes that allow exhaust gas to flow through. All activities, which are otherwise permissible under the provisions of Coastal.
Regulation Zone Notification, but have commenced construction without prior. In all Rules, the regulation zone has been defined as the area up to m from the high-tide line. The restrictions depend on criteria such as the population of the area, the ecological sensitivity, the distance from the shore, and whether the area had been designated as a natural park or wildlife zone.
Begin typing your search term above and press enter to search. Press ESC to cancel. Another option taken from the Insight is a continuously variable transmission, or CVT, which would be coupled with the drive-by-wire technology. By taking these various elements from other vehicles and combining them into one package, Honda is attempting to reduce costs. Honda has also cut down on weight: the CR-Z weighs just 2, pounds 1, kilograms -- fairly light for a hybrid car.
This is mainly due to a lighter body and a smaller battery. Many older hybrids are weighed down by extremely heavy battery packs , which, ironically, results in poor fuel economy. For lots more information about hybrid technology or other related topics, follow the links on the next page. Sign up for our Newsletter! Mobile Newsletter banner close. Mobile Newsletter chat close.
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