Red Bull F1 team has changed approach to solve problems - Kvyat

After finishing second in the constructors' championship in 2014 with three victories, Red Bull slipped down the pecking order this year, with its Renault engine proving particularly troublesome.

The team also believes rule changes affecting the nose of the car hurt its aerodynamic performance earlier this season, but Kvyat believes Red Bull has worked through the worst of its problems.

"We obviously had issues at the start of the season, which we now understand and we have started to modify our approach," Kvyat told AUTOSPORT.

"These modifications are bringing us better things now, we can see we're improving in a way operationally, and I feel a lot more confident now in the team."

Kvyat also struggled at the start of the season, even drawing criticism from Red Bull advisor Helmut Marko, but since the Monaco Grand Prix he has bounced back, culminating in the high of second place in the Hungarian GP.

"The beginning of the year was hardly a honeymoon for me," added Kvyat.

"It was tough, with many people saying a lot of funny things, but it was not like I'd forgotten how to drive a car in a couple of months.

"I did have a few question marks inside my head, a few interesting thoughts which I'm keeping to myself, which all helped me to get to know myself more, to understand myself as a person.

"It helped me a lot, and although I didn't have a very easy time in the beginning of the season, now it's all OK."

Red Bull backed Kvyat's graduation through the junior single-seater ranks into F1, and he is keen to repay that faith by helping the team back to competitiveness.

"All the great teams have their ups and downs, and we're living our down at the moment," he said.

"It's now about bringing ourselves back up, and it would feel fantastic to be at an up again, together with the team, knowing you've been a very big part of it.

"That's seriously something I am dreaming about at the moment with Red Bull.

"I see it that we are building our new era in the team, it's as simple as that, and I am quite confident we will get there."